Steam Deck Left Bumper Button Replacement

Written By: Carsten Frauenheim

Comments: 128

Steam Deck Left Bumper Button Replacement

Difficulty

Moderate

Steps

Time Required

45 minutes - 2 hours

Introduction

Use this guide to replace the left bumper button (L1) in your Steam Deck LCD.

Remember: follow general electrostatic discharge (ESD) safety procedures while repairing your device.

Tools

Parts

Steam Deck Left Bumper Button Assembly

Step 1

Turn on your Steam Deck and allow the battery to discharge below 25% before starting your repairs, as a charged lithium-ion polymer battery can be dangerous if accidentally punctured.
As an extra precaution, Valve recommends putting your Steam Deck into battery storage mode within the BIOS before starting any internal repairs. Read how to do that here.
Power down your Steam Deck and unplug any cables.
If you have a microSD card installed, make sure to remove it before opening the Steam Deck. If you attempt to remove the back cover with it still installed, it could snap right in half.
During your repair, it can be helpful at times to lay the Steam Deck face-down into its case to protect the thumbsticks and prevent wobble.

Step 2

Use a Phillips driver to remove the eight screws securing the back cover:
Four coarse thread 9.5 mm-long screws
Four fine thread 5.8 mm-long screws
Despite the standards, Phillips screwdrivers can vary in size and shape—two drivers labeled as the same size may fit differently in the same screw. Use the size that fits the snuggest into the screw head.
Throughout this repair, keep track of each screw and make sure it goes back exactly where it came from to avoid damaging your Steam Deck.

there should be a picture of the SD card slot at the start of every Steam Deck teardown. i know the note is there but i generally use the pictures to guide me and forgetting to remove the SD card is a very critical step

Nathan Barrow -

I agree, I just broke mine...

Camille B -

What is the the #1 philips used for? Only the #0 is mentioned in the instructions.

Christopher Martin -

I wish they would specify which size to use for which screws.

Mark D -

I found it easiest to use a PH1 for the red screws, and PH0 for the rest (including the internals.)

Chris Clawson -

Be careful you can strip the screws take your time

I use PH00 bit

jaybush74 -

I used the PH1 bit for this. You can use smaller bits but ideally there should be no play of the bit in the screw head.

Charles Semple -

are there playstation replacements (circle,square,cross,triangle)

Deór -

I used the ifixit tools and used the 00 size for the screws on the back.

Luis B - 10/01/23

I've completed the guide and found it very helpful!

I think somewhere in this part it would be helpful to name the size of the correct Phillips driver to use:

Use a Phillips driver to remove the eight screws securing the back cover:

Four 9.5 mm screws

Four 5.8 mm screws

Maynard -

I used the PH1 for the 9.5mm screws and PH00 for the 5.8mm screws. The PH0 wanted to strip one of the small ones.

Pol Llovet -

FYI - 512gb version has blue threadlocker on the Orange screws.

Kyle -

Just a point for knowledge sake, the Four 5.8mm screws on this step are factory installed with a version of locktite. Not sure why but there will be slight resistance when removing the first time.

Derek Schmidlin -

Stripped two of the 5.8mm screws, feel pretty dumb, now I'm stuck at step 2 of 43 :|

Yareyous -

The screw bit that came with my fix kit just stripped the screws of my steam deck. I guess I should've just sent it in...

Randy Jackson -

Step 3

Insert an opening pick into the thin gap between the back cover and the front shell, along the edge of the right grip.
If you're having trouble inserting your pick at the grip seam, try starting at either the top or bottom long edges first, then slide the pick towards the grip.
Pry up on the back cover to release it from the locking clips.

I found it easiest to start this process at the top of the device near the fan exit.

Peter Lindberg -

second that and inserting the pick in the bottom middle and sliding the pick to each side

Sub -

I also found the top near the fan exit to be easier

Travis Patton -

Thank you for this tip, it definitely was easy starting at the top instead of by the bumper/triggers. After I opened the top I did the bottom and then it was way easier to gently open the sides. be very careful and go slowly to make sure that none of the clips are damaged

Luis B -

this as suggested above:

1. open the top

2. open the bottom

3.gently open the sides

austrasier - 17/04/23

same; i pried from the top of the screen area. I was unable to find an opening on the side

Dennis Wu -

I also started from the middle of the deck and worked my way out since I couldn't get a grip with the pick on the deck's side grips. Since this is a common step for pretty much all guides for opening the deck I think it's also worth noting that you should be careful not to bend the trims/seams where the front and back covers meet with the pick. When I first opened my deck you can definitely see where I nudged the pick in between the covers since I was probably using too much force on the pick itself.

Kaleb McKone -

It would be useful to note here that if you want to insert the little blue triangular iFixit opening picks into the right side along the edge, there isn't actually a gap as the directions say, at least not on newer Decks. You'll be making the initial gap using the pick. Brace it on something because you will need to use enough downward force that you're flexing the pick a bit and it'll probably be digging into the skin of a bare hand. With enough force suddenly it will make a click and go in just a bit, and then you're in business.

CaptFrost -

plastic picks didnt work for me but finger males did the job on prying this open

jacobbagsic -

I found it easiest to open starting with R1 or L1 buttons and proceeding to the center of the top edge

Karol Gro -

This step was the hardest by far. First I didn't find an opening at the sides, and it did take a really long time until I finally got it open... Then, when I had the one side opening open it didn't just pop out, I needed to slide all the way to the other side with the pick and open everything. I guess they made it even more drop resistant.

Dollique -

Step 4

Once the clips are disconnected from one edge, the rest disconnect easily.
Grip the back cover at the opening you just created and pull it up and away from the device to unclip the long edges.
Remove the back cover.

If you have an SD card, you will want to take it out. I followed the guide and didn't think about the SD card I had inside. When I went to snap the case back on it clapped shut on the exposed SD card, shearing it in half and leaving the bottom half stuck in the SD card slot. I am still endeavoring to get it out.

Novice -

you can use the case that comes with the steam deck to support it once the lid is removed

Luis Barbosa (Armored Saint) -

You can get the pry pick inserted easier if you start in the gap for the shoulder buttons. A lego brick separator works well here

Andrew Borsje -

Step 5

If you have a refreshed Steam Deck version with the black motherboard cover, skip this step.
Use a pair of tweezers to remove the piece of foil tape covering the hidden screw on the board shield.
If possible, try not to rip or tear this tape so it can be reused. If necessary, you can fashion a replacement by cutting a piece of aluminum foil tape to fit.

Use some heat here from a hairdryer to make this part easier.

If you screw up here you can replace the little aluminium square with some aluminium tape from Amazon. No less than 50 microns thick, slightly thicker is fine. and the square is 13mm both ways.

Matt S -

Thanks for that Matt, i destroyed the original tape and i had no solution since i read your comment.

Cihan Kocaman -

there are other new version of board shield from 2023.

Gorf Woo -

Is it alright to use the deck without the tape?

Jake -

You should not. This is EM shielding to protect your processor and ram from radio waves in the air

Andrew Borsje -

I found out my 3 Weeks new Steam Deck is a old Version... gg. Valve...

Miller Schiffer -

wenn ich aluminium foile benutze, womit soll ich sie dann verkleben?

Christian Dud -

If we have the new version with the black shield, how do we access the SSD?

James Bennett -

I need this part, does anyone know where to get it?

rolando norica -

PSA: The only purpose of steps 5–8 is to enable you to disconnect the battery, which is not essential. I skipped steps 5–8 and did not have any trouble with the repair.

David H -

Step 6

Use a Phillips driver to remove the three screws securing the board shield:
One 3.4 mm screw
Two 3.7 mm screws
Only the two 3.7 mm screws along the left edge are present in refreshed Steam Decks.

The procedure ended here for me, used an ifixit PH 00 bit on the screw behind the aluminium tape, bit wouldnt bite too great, one wrong twist and the screw was stripped. Not sure who or what initially screwed in that particular screw as the rest of the screws on the shield were fine, but boy is it in there tight. So now i have a stripped screw and a botched ssd replacement, don't think valve will let me RMA for this, but i'll give it a try and update accordingly.

Y. van S -

Any updates? Did they let you RMA?

Emanuel Gjoni -

I found one screw to be ridiculously tight too, managed to undo it without stripping thanks to reading your comment beforehand and going extra careful. Not going to lie, it was a tense moment :D

Andy HL -

I'm stuck in the same place. I haven't fully stripped it, but I can tell you that if I try and make it budge it will strip. The thing is massively overtightened. The driver fit fine, the metal just gives way before the screw will budge.

Robert Boswell Johnson -

I think the tendency is to go too small on the screwdriver bits because you're working on small electronics.

I used the PH1 bit on the screw under the foil and the PH0 bit for the two remaining screws without any problems.

Charles Semple -

What does this shield actually do? Some kind of magnetic protection?

Corey Cleric -

if I had to replace the key (R2) and that's it, can I directly remove it or do I have to act here on the motherboard too?

pujattidanny -

have you gotten an answer yet? trying to change mines as well but dont wanna do too much to the deck

briaNN -

button Not key, i’m sorry

pujattidanny -

I used the ifixit tools and used the 00 PH for these screws with no issue

Luis B -

If only swapping the SSD, it is not necessary to remove the top left 3.7mm screw. The heat shield is flexible enough that you can move it out of the way to access the SSD screw. For me this was necessary as the 3.7mm screw was completely unmovable and quickly stripped.

Scott A -

FYI there is a little pin on the cover that slots into the board. It is located near the top screw. I needed that to be inserted for the cover to go back down properly.

Seth Robinson -

For anyone who may have stripped a 3.7mm screw, Steam Support states it's M1.6 diameter with a 0.35 thread pitch and a 3mm length. Hopefully that'll help anyone trying to locate a replacement screw. Hoping iFixIt can make an internal screws kit as they're kinda hard to find the right one online.

Michael Dyer -

Did valve change the shield recently as my new 64gb deck has a black shield with no hidden screw.

David Alexander Hubbard -

Yes there's a new hardware revision out there that some people are getting. Consider stopping at this point and putting your deck back together if you have one of these new hardware revisions (the fan is quite different as well to the pictures) until iFixit has an updated repair guide.

Simon Meacham -

There are only 2 screws now, but be careful taking the shield off, because there are still thermal pads under it sticking it to a heat pipe.

Rudolfs Skurulis -

Are they m2 3.7mm screws? I am looking to replace mine because they instantly stripped and I had to remove them with needle nose pliers because they were over tightened.

Nick -

I need this piece, can someone help me where can I find it please?

rolando norica -

Hi, is it possible to buy these shields somewhere? I am extremely interested in buying a replacement.

Yannick B. -

Step 7

Remove the board shield.
Depending on the age of your Steam Deck, this shield may stick to the thermal pads underneath.
During reassembly, ensure that the fan cable lays on the side of the board shield and isn't pinched underneath.

When putting back on, run a pick along the edge of the shield between the wires to make sure nothing is pinching and the wires are clear of the shield before screwing down.

Matt S -

During reassembly, ensure that the fan cable lays on the side of the board shield and isn't pinched underneath.

Are you saying that the fan cable should be positioned above the board shield instead of being pressed down by it? Just like the image shows, where it 'lays on the side of the board shield'?

James -

Necesito esta pieza la mía no la traía se ve que se la quitaro

rolando norica -

Step 8

Grip the battery cable by its pull tab and pull it directly away from the motherboard to disconnect it.
Alternatively, use the flat end of a spudger or a clean fingernail to gently push the connector out of its socket, then disconnect it completely by hand.

After fully reassembling my device I found that my battery was not showing any stats anymore. I couldn't start the device without being plugged in, however if I restarted it would stay on even if my power cable was detached. Battery showed 0%. It turns out I had not fully reinserted the battery cable at this stage during reassembly. MAKE SURE YOU PUSH IT ALL THE WAY BACK IN!

Michael Hoffmann -

Awesome thanks for this tip!

petergeranio -

It is helpful to lift up gently with a the tapered end of a spudger underneath the tucked-in portion of the battery cable, creating a bit of flex in the cable before pulling on the pull tab. I found that without doing so, the fabric pull-tab simply tore off of the cable under light-to-moderate force (the fabric itself ripped cleanly across, like a paper towel). Careful, gentle pressure with a spudger can be used to remove the plug by prying gently on the rear ridge of the plastic plug (not the wire!) if this happens.

Gene Eckser - 08/08/22

This is exactly what happened to me. Maybe it was a pull tab previously, mine was a ribbon cable that tore - captured the image here: https://www.ianwootten.co.uk/2022/11/22/...

Ian Wootten -

This was the best approach (and I feel safest for the wiring) for me. Mostly push pressure on the plastic ridge with some minor pull tension on the fabric.

Victor -

I found it less scary and easier to remove the battery connection by using a fingernail on the ridge and pushing it off the connector. I felt like pulling on the battery cable was too harsh.

montgomery mchargue -

Yeah, pulling cables like these is usually ill advice. They might be fine if it's a new device, but for old devices that have been sitting there for years, there's a good chance the connector has grown brittle and the cable might just come off separately (something I learnt the hard way).

skzm -

I second this approach. For me, the cable felt way to flimsy and the connector wouldn't budge even under moderate force. Except I used the flat end of a spudger to "scrape" it out.

Misza -

Upon plugging the battery back in, I found it easy to use two spudgers- one on each side- to pull/push the connector back into it's port. Be careful to not put any pressure on the battery wires themselves.

montgomery mchargue -

When reconnecting the battery cable, you'll know when it's inserted and power is restored, because the white LED will illuminate at the top of the Deck near the power button. You should be able to see it while you're reconnecting the battery cable

Michael Davis -

This is only true if you haven't put the deck into battery storage mode as directed.

Ean Manley -

Why not just let the battery discharge completely and then not have to disconnect it?

Jeffrey Martin -

Completely discharging a battery reduces its lifespan. It's completely unnecessary.

Stefan Camporese (CENTER) - 12/11/22

Because no lipo battery is ever completely discharged -- you would not be able to recharge it if it was. There will always be enough power left in it to cause damage if shorted even if it isn't charged enough to power up the device it's connected to.

David Cameron -

I would personally not recommend pulling the tab. It doesn’t apply force at the correct angle. You should revise these instructions to advise using a combination of pulling on the tab, and careful pressure on the connector towards the right of the mainboard to carefully work it out.

Using the pull tab alone could cause problems if not done extremely carefully.

William Winborne - 09/01/23

This part was wayyyyy easier than I anticipated and I worried for nothing because I used the ifixit spudger to push it out a bit and then I literally used my finger nail and was able to slide it right off. Dont be afraid, its not that difficult and its not that delicate to break if you do it patiently

Luis B - 10/01/23

I inserted the cable very firmly with a spunger, being careful not to press down too hard on the cables, and even tried redoing it, but I don't see any LED illumination. I am now unable to boot the deck into the boot manager. Any additional tips?

junefish -

What is the risk of not unplugging the battery? Just curious!

Nick Hight -

Once I was changing termal paste on my Windows based expensive tablet PC... And I was so scared to disconnect any cables (there was many of them), so I did it all with battery connected (I didn't even knew where is battery cable). When I tried to put board shield back... it didn't go right into needed place... and short circuit some small component. It flashed. That was the end of my repair. Dudies from repair service later told me that multiple components fried including CPU, so repairing is too hard. That's what can happen if you don't disconnect battery.

bugwarlabs - 02/06/23

To pull the battery out I used my spunger, but the batter had actually not space to be pulled out completely. I needed to lift the cable up with the spunger to get the cable fully out. When plugging it in again I had to press the battery down kinda hard so it would fit again. This was really scary and I recommand using two spunger as someone said above.

Dollique -

Does it have to be a clean fingernail?

Steven Murphy -

I disagree with the order here: I think the battery should be disconnected right after step 4. You can do that before touching anything else by gently pulling the pull tab to the right.

If all you want to do is to disconnect and reconnect your battery (because your Steam Deck is not booting up... again...) then with a bit of finesse, luck and a flat plastic tool you can even push it back in without removing the shield. Make sure it went all the way back in.

Fozi -

Be very careful with this tab, it rips easily!

Tom Sid -

Step 9

The left trigger will be on your right-hand side when working on the Steam Deck, as it's laying upside down.
The Steam Deck's triggers clip into place on two pegs on the trigger bracket, which doubles as the hinge.
Place the flat end of a spudger onto the inside edge of the trigger's left clip.
Pivot the trigger clip out, away, and up from the peg to unlatch it.
During reassembly, latch the outermost peg first. Once in place, push down on the trigger to latch the innermost peg, producing an audible "click" sound.
Check to make sure that the trigger spring is properly aligned. Test the trigger action before continuing reassembly.

This step is taking me a while to get the trigger out.

Tom Sid - 28/11/24

I solved this by pushing the trigger to the left while inserting the spudger.

Twist the spudger, it will take some force.

The trigger and spring will fly out.

Tom Sid -

Step 10

Remove the left trigger.
Take care to not lose the trigger spring. It press-fits onto a peg on the trigger's underside.

In case the spring gets lost, it's 19 mm long with about 14 coils.

Claudiu Avram -

Omg thank you

Jill Flanagan -

Step 11

Use a Phillips driver to remove the three 5.2 mm screws securing the left trigger bracket.

Step 12

Remove the left trigger bracket.
Replacement triggers require calibration to work as expected. To calibrate new triggers, follow this calibration guide.

If I only need to get to this part to check if I have to change the button or the daughterboard, do I HAVE to disconnect the battery ? The less I fiddle with things the more likely it is that I won’t break anything else…

Monsieur_Croco -

Step 13

Use the pointed end of a spudger to lift up the small locking flap on the thumbstick cable's ZIF connector.
Use a pair of tweezers to slide the cable out of its connector.
Grip the cable by the blue pull tab, not by the cable itself.

My tweezers keep slipping off, this pull tab has poor grip.

Tom Sid -

I ended up just using my fingernails and it worked.

Tom Sid -

Step 14

Use a Phillips driver to remove the three 5.2 mm screws securing the thumbstick.
During reassembly, you may need to hold the Steam Deck off of the work surface so it isn't resting on the new thumbstick while you tighten down the screws.

Step 15

Remove the left thumbstick.

Step 16

Use the pointed end of a spudger to lift up the small locking flap on the button board interconnect cable's ZIF connector.
Use a pair of tweezers to slide the cable out of its connector.
Grip the cable by the blue pull tab, not by the cable itself.

Interconnect cable is along bottom of left board (on your right hand side). Ought to put a picture of where it is for easier reference.

David Boers -

Step 17

If any connectors are covered with tape, use a pair of tweezers to remove it.
Use the pointed end of a spudger to lift up the small locking flaps on the rest of the button board ZIF connectors. Use a pair of tweezers to slide the cables out of their connectors:
Disconnect the D-pad cable.
Disconnect the touchpad board cable.
Disconnect the touchpad cable.

Step 18

Exercise caution when lifting this connector—pry up on the connector itself, not its housing.
Use the pointed end of a spudger to lift up on the haptics cable to disconnect it.
Alternatively, you can leave the haptics connected to the button board and flip the board up and over the edge of the shell and out of the way.

Any advice on resoldering a disconnected haptics connector housing?

Will Rarich -

If you dont accidently launch the housing some where you cant find it

Jimbo -

Der Stecker steckte fester im Gehäuse als das Gehäuse auf der Platine... Eine Idee, wie das in Ordnung gebracht werden kann?

Mariano Mertinat -

Step 19

Use a Phillips driver to disconnect the four screws securing the left button board:
Three 5.2 mm screws
One 3.9 mm screw

during reassembly you will need to remember to line up board with 2 plastic mounts. pcb has good flex and can push down top to get top screw to line up flush

B P -

also the 2nd cable from the top (the one below shoulder button cable) should be pulled free before tightening your screws lol

B P -

Step 20

Remove the left button board.
Keep track of the Steam button and its membrane, as once the left button board is removed, they're no longer secured in place.

This is useful, but how do I get a Left Button Board? Mine is damaged in the left bumper button micro switch and I need a replacement.

KaizerJV -

i thought i needed to replace L1 but i need to replace daughter board too. Valve has said they will supply left daughter boards they are just sold out rn

B P -

Same, i replaced the assembly for nothing, its the board that needs to be replaced, since i cant solder at all and its the blue button that is faulty

rubenalexandredinisaraujo -

Where can I purchase a board

Charlie Trevino -

I need this board to fix my deck

Avery Jones -

que precio tiene esta pieza, se daño la de mi steam deck

jose cortes -

when will the button board be for sale?

Brett Archey -

L4 button not worked. When will the button board be for sale?

Racoon Family -

Will a button board be available for purchase soon?

Sean Gillum -

Please provide daughter board, l1 button stopped working. Pads lifted off the board.

Alistair Pullen -

Please sell a button board. L1 button stopped working. Seems to be a common issue.

Jimmy -

Will a button board be available for purchase soon?

Ernesto Bauer Maza -

Also need a button board....

Ben Bartlett -

Guys, I have the same problem as everyone else. The STEAM button stopped working almost immediately after purchase, Steam actually refused the warranty - they offered me to bring the console myself to the other side of the world, although they could have simply sent a replacement part or a new one. You can’t buy spare parts anywhere - they simply weren’t made “in reserve.” As a result, I have a dead, useless console for a lot of money. No trust in Valve now. I'm thinking of filing a class action lawsuit against the company. Maybe we can get together? I'm @paaladin on social networks and Steam.

Pavel Semenov -

Step 21

Use a Phillips driver to remove the two 5.2 mm screws securing the left bumper assembly.

Step 22

Remove the left bumper assembly.

When reassembling, you may need to force the bumper in a bit until you hear it click.

When I was first reassembling it, I had difficulty screwing the button boards back in. Additionally, my bumper and dpad felt like they were not sitting correctly, when fully reassembled. I believe this was because I didn't fully push in the left bumper assembly even though it looked like it was sitting in place correctly.

Aki Nicholakos - 23/11/22

During reassembly, align the lower right corner first. This protruding part on the right side must go under the clip of the shell.

CookiePolicyEnforcer - 29/12/23

Step 23

The bumper button clips into its bracket with plastic tabs.
Lift the button up and away from the bracket to unclip the topmost plastic tab.
Disconnect the rest of the plastic tabs to remove the button.
Take care to not lose the button spring.
During reassembly, hook the button in at the spring end first, then pull the topmost clip up and over into position on the bracket.

The replacement "Left Bumper Button" part (IF260-016-1) contains the assembly shown in step 22 - the button itself, spring, and plastic bracket it is attached to. The part does not include the daughter board that attaches to the rear face of the plastic bracket, which has the contacts for the d-pad and associated ribbon cable. This is correctly noted on the replacement parts page, and is not a surprise.

What is worth noting here is that the daughter board is a very thin, flexible substrate (~thickness of an index card), and is attached to the rear face of the plastic bracket with adhesive or glue. If only the button itself (and/or spring) replacement is needed, this is not an issue, as the NEW button/spring assembly may be removed from the NEW bracket (which has no daughter board) and attached to the OLD bracket that has the daughter board glued on.

If the bracket itself is broken/damaged, then there are missing steps, as the daughter board would have to be removed/re-glued to the new rear of the bracket.

Gene Eckser -

Conclusion

To reassemble your device, follow these instructions in reverse order.

Take your e-waste to an R2 or e-Stewards certified recycler.

Repair didn’t go as planned? Try some basic troubleshooting, or ask our Steam Deck answers community for help.

Author

Carsten Frauenheim

Member since: 10/03/20

130781 Reputation

14 comments

All good! but you are missing the last step as you will need to replace the Dpad contacts and place them on the new bumper.

Corey Church -

I broke the Step 17 connector's support, with no preassure, just as a lever, any idea on replacing the DAF7ATH16F0 Rev F (last 0 may be a O) board? I will solder the broken connector but I don't think I will be able to, so small

Carquis -

This part is not available in Canada, I've seen your product advertised all over the tech industry, but this part is not available to ship to Canada, that's too bad, I would have purchased the repair kit along with this part, I guess I'm stuck with the rma process. I guess right to repair is still very broken.

FlyingToaster -

Any news on when this part will become available for purchase?

Marco C -

Just so others are aware, I haven't seen the Left button board or the Right button board available for purchase from Ifixit just yet. I just took apart my deck having ordered a left bumper replacement set thinking this would fix my issue, it will not. The issue is the switch itself that is attached to the Left Button Board

Antonio Cruz -

Just an fyi for those who need the tactile button replaced on the control board and not the button. You can order Nintendo switch joycon replacement buttons, and use them. You have to be pretty good at micro soldering to make it work. If you have questions, I might reply. I'm also thinking about offering my soldering as a service if any of you can't get it working. lmk

Kyle -

Any ETA on this Left Bumper Button Assembly part being in stock?

borealys -

I bought a used Steam Deck and noticed that the left bumper only works if I press it on the top, but not when I press it at the left side. There is no click and the press is not recognized. Can you tell me if the button or the board/micro switch is probably broken?

Michael Gehling -

Michael, it's hard to tell without disassembly. The bumper buttons can stick since they're so wide—and since you purchased it used, it could just be dirty.

Carsten Frauenheim -

Same exact thing with me. I barely used mine but have had it since week 1. I bought and replaced the assembly and button and still did not fix issue so I'm a bit lost with it.

chris G -

same here,problem is not solved after replacing L1

ERIC Wong -

Hi! i know this is a very old thread, but i have the exact same problem with mine. did you ever have a fix for it? or did you know what the problem was?

Manuelito Simoi -

Very clear instructions. I successfully replaced the L1 button because I have no repair experience, but it seems that there is a design problem with the L1 button.

ERIC Wong -

I have the problem that my microswitch broke and I can't find the replacement board (DAF7ATH16F0 Rev F)

do you know where it can be found?

Giampaolo Brunetti -