EVO 4g Power Button Failure and Repair - $14! - EVO 4G General

My Evo 4g started to develop the dreaded power button failure problems with it randomly not waking up the phone up or putting it to sleep. Over the past few weeks it got progressively worse until it fully failed over the weekend and the only way I could wake my phone up was to plug in the USB cord or have someone text or call me. I was super bummed because my Evo has been a great phone and I don't want to waste my upgrade on a new phone until they get LTE here ... maybe sometime in 2013?
So the good news is that I tried to repair it and found a fix that works! I can't guarantee that it will work for you, but it did for me! Here is what I did:
1. Remove the battery.
2. Remove all 6 torx screws (T5) that secures the red internal frame to the display. One of the torx screw is covered with a black paper-like covering - don't miss that one. It's easy to push the torx wrench through the black paper material to get to the torx head.
3. Carefully pry the red internal housing from the display housing. Start on one side and work around the phone.
4. With the red internal housing removed, unscrew the small phillips screw in the upper corner to remove the motherboard from the display housing. The motherboard will now lift out of the display housing. Don't detach any cables.
6. As you remove the motherboard, look at where the power button is located in the display frame. Just under the power button - but attached to the underside of the motherboard - you will find the actual power button. It is a small silver square at the top of the motherboard with a black button at the top of the motherboard.
Now here is the fix that worked for me...
7. Flip the motherboard over and away from the display so the power button is facing up. There will be some cables holding the display and the motherboard together.
8. Get a can of Radio Shack Electronics Cleaner (contact cleaner). See attached picture of what I used.
9. Hold the phone unit so the power button is lower than the rest of the phone and spray the power button electronics with the contact cleaner using the contact cleaner with spray tube. I was careful not to overspray the mother board (but some did get on the motherboard), and I made sure I didn't get any on the display housing.
10. Let contact cleaner dry for a few minutes, reassemble, and test when completely dry.
That's it! The contact cleaner must have cleaned out whatever corrosion or material was in the power button because it works perfectly now. I did this on Monday of this week and still no problem three days later. Total repair: about $14!
If you are apprehensive about taking apart your phone, here is a link with step-by-step instructions: http://www.ifixit.com/Teardown/HTC-Evo-4G-Teardown/2979/1
So if you are experiencing the dreaded power button failure and you are out of warranty, give this a try before you throw your money away. Hopefully it will work for you!

IT WORKS!!
You sir are a genius. Thank you for the walk through.

Related

How to replace the digitizer.

I cracked my aria screen pretty much right after I got it, Managed to get my hands on a new digitizer and replaced it. I found a quick walkthrough on Android forums. It helped but had a few points that could have been more succinct.
Posting here in case anyone needs.
Took me about an 1hr 30min the first time trying to figure it out on my own.
My additional comments are indicated by **.
I put some addendums to @Jcawesome's steps...
( http://androidforums.com/1211507-post42.html )
1. Remove backcover
2. Remove Battery, sim chip, and memory card
3. Unscrew the top two screws (meaning the end farthest from the memory card.)
4. Using a flat plastic wedge, (I used the one that came from my ebay order, it looks like the blue tool in this pic )
5. Carefully pull off the parts at the top being very cautious not to break anything. (Do not pull the circuit board out, only lift the end closest to the edge of the phone)
** there are two pieces to pull off....with the phone laying flat (screen down and the top facing away from you) a larger yellow piece with an attached back speaker comes out towards you. a second piece pulls up (north as if on a map)... but becareful because there is a bunch of tape and tackiness all throughout this thing (literally I felt it was held together by tape). I actually pulled off the grill on front as well.
** the circuit board is kept attached near the top right. the element that is the power button snaps off. (there are two little dots just to the right of the speaker with what looks like blackish tape that connects to the circuit board... you can pop this off.
With that off, I could lift the circuit board about 30 degrees or so... I wasn't comfortable pulling it back any farther than that.
I did step 5 AFTER I got the screen off.
6. Using the flat plastic wedge again, push the wedge tool between the phone and the broken screen. (It will feel like you are breaking it but it is fine, it is held on by a sticky paste that will slowly give way)
** careful on this part... especially difficult depending on how your screen is cracked. but it is just a bunch of sticky tape that is keeping it attached.... I had to peel away the goo and connection near the top sensitive areas as my ear piece speaker came off with the goo.
7. Disconnect the connecter from the old digitizer to the new one and remove the old digitizer.
**I used a small little tweezer and sneaked it in underneath the circuit board to pull the digitizer connection out.... a little difficult to push back in, but just took some patience.
8. Being careful not to put fingerprints on any exposed surface of either the phone lcd or the replace screen, place the new digitizer in the exact spot of the old one.
** have some lint free microfiber cloth handy and perhaps some screen cleaner.... I spent about 15 minutes cleaning the lcd screen before laying the replacement digitizer back on.
I actually did step 9 before step 8.
9. Connect the connecter from the new digitizer to the board, be careful not to pull the circuit board out and do not scratch the board.
10. You may want to use some glue to hold the new screen on, hopefully this will not happen again. My phone still had enough of the sticky paste left to hold the new screen fine.
** I agree... the first time you replace it will be fine.... afterwards tho, I can see it running out of tackiness.....
11. Put the phone back together in reverse order.
12. Turn it one and everything should be working again.
** in a nut shell
1) take out two screws
2) detach two yellow shell pieces
3) unhook a latch that is the power button
4) pry off the screen
5) lift the circuit board approx 30 degrees.
6) detach digitizer connection from underneath using tweezer
7) replace digitizer connection, return circuit board flat
8)position digitizer and press down to adhere
9)replace two plastic yellow shell pieces
10) screw it back together
done.
let me know if you have any questions.=)
enjoy your "brand" new aria.
dude,, this is a PITA,, I did,, was about 1hour, the hardest part,, is to not put the fingers on the LCD and cleaning the new screen..... dust particles everywhere... and at the end still got one...
Sorry eortizr, If I made it seem easier than it was. I spent quite a while cleaning the lcd screen when I replaced the digitizer... I don't think it's possible to change the digitizer without getting fingerprints on it though. But with some diligence and working in a clean area, I was able to keep all dust and finger prints out of the final product.
My wife dropped hers. Cracked up pretty good but still functional. Think I might just go ahead and pay the $100 and have someone who does it for a living do it.
I can totally see me trying DIY concentrating real hard dripping sweat all over it and ruining the MB. LOL
Replaced the screen today. Half way in I thought I definitely bit off more than I could chew. I got it done though. A couple of things I learned:
The digitizer unplugs away from you or toward the screen with the phone laying flat (screen down and the top facing away from you). I kept thinking i had to unplug it by pulling it north, toward the top of the phone.
I dropped and threw away both the front speaker and the very small rubber piece that covers the proximity sensor so... when I turned the phone on everything looked good, until I answered my phone. The screen went blank and I couldn't hear anything. I found the speaker and the proximity sensor cover and replaced them.
I would do it again, its worth saving $50 or so.
Thanks for the tutorial dreamflux.
I found the whole kit including the adhesive here: http://cgi.ebay.com/ws/eBayISAPI.dll?ViewItem&item=180643624141
This is the seller in case the sale ends and the link breaks: http://myworld.ebay.com/chinaphoneaccessories/?_trksid=p4340.l2559
I found a replacement digitizer from tmart dot com for $55, free shipping. Just search Aria on their site, you'll find it. Sorry, I can't seem to post links yet.
What was peculiar, was that it has only the HTC logo in the center, and no ATT logo. Looks nice and clean. They included plastic separator tools and torx drivers, though nothing in this phone uses torx. The site is a little shady, and while their headquartered in Hong Kong, it shipped from Brooklyn NY about 5 days after purchase, priority mail. The swap wasn't bad, but my only complaint is that the lights from the softkeys seem to shine up onto the screen, but you get used to it. It's probably because I didn't transfer the stickers over on the bottom of the digitizer.
Thanks for the directions ... I just replaced my digitizer. I had 2 major problems: 1) my power button doesn't work any longer (I'm going to take it apart and try to put it back together and see if that fixes it), and 2) you HAVE to use BLACK sticky stuff to seat the bottom of the digitizer - I used the clear stuff that came with the digitizer, and now I have tons of light bleeding into the LCD from the button backlights. I'm not sure what to do about the bleed ... I guess I'll have to tear it down again and put black stuff in ... damn.
That's the deal with that excess backlighting! I thought it was just a matter of the screen being misaligned. Terrible that I have to replace that black foam, it got shredded while I was dismantling the thing to replace the digitizer.
eortizr said:
dude,, this is a PITA,, I did,, was about 1hour, the hardest part,, is to not put the fingers on the LCD and cleaning the new screen..... dust particles everywhere... and at the end still got one...
Click to expand...
Click to collapse
its always suggested to work in a dust-free space but we all know that's virtually impossible.
I had a bit of fun with dust & fingerprints when replacing my LCD after getting my Aria, After a time or two of taking apart and being unsuccessful, I left it as is with one visible flake.
If you take a hot shower the steam in the air sticks to dust particles leaving no dust
Sent from my Liberty using XDA App
aria
use electrical tape to cover up the lighting that comes through the digitizer
use 3m double sided tape to hold digitizer to lcd
use rubber gloves to change screen to not get finger prints on it
dust906 said:
use electrical tape to cover up the lighting that comes through the digitizer
use 3m double sided tape to hold digitizer to lcd
use rubber gloves to change screen to not get finger prints on it
Click to expand...
Click to collapse
*Just to make sure I'm putting the electrical tape on correctly*
put the double sided tape on and then put the electrical tap (sticky side facing up) on top of the ds tape then apply the screen to the lcd
Thanks for the explanation dreamflux.. This, along with some youtube videos helped me out to change the digitizer, but patience is THE key...
Brought my phone with me to Cedar Point the other day. Survived the entire day....until I stopped at the bars on the way home. Got out of the car, forgetting I had my phone on my lap---shattered right by the track pad.
Just got my digitizer today for $22 on ebay (not bad) After 2 hours and a migraine later, everything came out great.
The only 2 things wrong now are the light from the softkeys bleeding onto the screen and out the sides (I'm just going to shut those lights off), and the trackpad sits a little lower than the screen now. Either I didn't align it right, or the glue isn't holding well. It's weird, if you press on the glass anound the trackpad, it wakes the phone (cm7 trackpad wake).
I only plan on using the phone for a few more months, so I'm happy with the results.
Uhhggg, did the replacement on my son's Aria. It wasn't so bad, but now the LCD screen doesn't light.
I get the vibration when you first hit the power button. Is this correct? I'm not too familiar with the phone.
Rececked the connector for the LCD and it seems to be snapped in.
brivette007 said:
Brought my phone with me to Cedar Point the other day. Survived the entire day....until I stopped at the bars on the way home. Got out of the car, forgetting I had my phone on my lap---shattered right by the track pad.
Just got my digitizer today for $22 on ebay (not bad) After 2 hours and a migraine later, everything came out great.
The only 2 things wrong now are the light from the softkeys bleeding onto the screen and out the sides (I'm just going to shut those lights off), and the trackpad sits a little lower than the screen now. Either I didn't align it right, or the glue isn't holding well. It's weird, if you press on the glass anound the trackpad, it wakes the phone (cm7 trackpad wake).
I only plan on using the phone for a few more months, so I'm happy with the results.
Click to expand...
Click to collapse
did you have any problems with the digitizer responsivenes or something like that? I'm need one and curious about the quality of the cheap digitizers in ebay.
so I replaced my friends screen and now the phone turns on, has sound, vibrates, but just doesnt turn the screen on... the light sensor works and all, and if I call it, it rings and everything, just the screen won't turn on it stays black... I've checked the 2 ribbons and everything is fine, anyone have a suggestion..??
jdmsohc22 said:
so I replaced my friends screen and now the phone turns on, has sound, vibrates, but just doesnt turn the screen on... the light sensor works and all, and if I call it, it rings and everything, just the screen won't turn on it stays black... I've checked the 2 ribbons and everything is fine, anyone have a suggestion..??
Click to expand...
Click to collapse
so what I meant was the digitizer turns on, but it is just a dark lit screen, no visual anything going on.. If i call it from another phone it will ring, but when i swipe right to left to answer and press around where the answer button is it doesn't respond either, just rings and rings... anyways just wanted to elaborate a little more..
---------- Post added at 02:28 AM ---------- Previous post was at 02:08 AM ----------
msailer said:
Uhhggg, did the replacement on my son's Aria. It wasn't so bad, but now the LCD screen doesn't light.
I get the vibration when you first hit the power button. Is this correct? I'm not too familiar with the phone.
Rececked the connector for the LCD and it seems to be snapped in.
Click to expand...
Click to collapse
same thing is happening with me as well..
^^^^ Soooooo.....I got the same thing on my wife phone, the BLACK SCREEN. I did my homework and read and watched videos on how to replace the digitizer. I was in a steamy room with all my tools from work with pre-cut electrical and .005" double sticky tape. im a mechanical assembler. I did everything to the tee and was very carefull. i think i got a bunk one from china. I bought mine for $19 from china. It had at&t logo and everything. you get what you pay for? So I've got to pay now $50 for a replacement phone through ins. Not bad because before i made the claim i thought the replacement was $150. Anyways just a heads up. Now i got a phone of spare parts Whats cool is that i get to root her phone all over again. So if anyone here has had the black screen. let me know what happened next with your situation. Did you fix it? replaced it with another one? thanks

[Q] Broken LCD screen :(

Hey im panicing so bad rite now. I just broke my htc's LCD screen ! Mad sad from this disaster . Dont got much money so can someone please tell me whats the cheapest or best way to replace or fix it ? I really need help because im freaking out!
The repair choices
There are basically two choices. Doing it yourself or having it repaired.
In either case the most straight forward is to replace the screen and digitizer as one unit. I expect you can still see things on the screen yet its cracked from one corner. Its the digitizer on the top that usually suffers but its hard to replace by itself. There is a YouTube video showing how to do this (search on Replace Touch Screen on HTC HD2 on YouTube).
If you are game to do it yourself (an electronics tech would be able to do it fairly well, though it is still fairly difficult) then you can buy a complete screen and digitizer off ebay (around $100). Getting the unit out of the case is tricky as its held in with 4xT5 Torx screws (easy bit) and lock notches around the case (tricky part). I found thin stiff plastic bits slotted in between the module and the case works well at releasing the locking notches. Then press out at the top of the battery area, while pulling the top edge of the plastic case out and down with your finger nails. One side at a time. Don't forget to remove the SIM card and SD card as these will hold the module in place if not removed.
The double sided tapes used to hold the screen in place are a problem, but warming them up with a carefully applied heat gun does release them. I would add that there is no need to unscrew any of the electronics boards as the screen can be replaced without doing this. Releasing the screen ribbon cable connector is done by flipping up the black locking section on the ribbon socket. Slide in the new cable, lock it down, then curl it around as you slide it backward under the metal case so that the curl in the cable occurs in that small space under the metal rather than being folded over sharply, which can fracture the ribbon cable "wires" rendering the screen dead.
Press the screen back down onto the tape (hopefully the tape has remained slick enough as its all that holds the screen in place). Be careful to align the edges and top and bottom correctly, otherwise your buttons won't work and the screen will not sit in the case properly. You can test the buttons as you align to feel for the slight click. Be sure to test all four as alignment left to right is just as critical for full function as up and down. You should also watch to be sure the light sensor little plastic bit (its a small clear cube of plastic) doesn't fall out and disappear while you are doing the screen swap and it stays in place during reassembly.
Then press it home into the plastic case. I remove the volume button (if it hasn't fallen out already) as it tends to push the volume button pads out of alignment (they are only held in with yellow tape (be careful not to loose them). Then with it all snapped in place pull out at the volume button section and slot the button back in place. Orientation is fairly obvious with the button points lower down and the joining bar going behind the case plastic to lock it in place (all with the screen facing upward). You may find the volume button only works if you press down on the screen slightly. This movement will be taken up when you screw the 4 torx screws back in.
Finish by powering up (with fingers crossed) and test. Hopefully all working.
Alternatively, if thats put you off doing it yourself, get it repaired by a service agent (around $300). Then it comes back all done with a small warranty. Most of the phone providers will be able to direct you to a good independent service agent.

[How to/repair/HW modding] Proximity sensor FIX

Hi,
For all those who have the black screen during call/ windows button not responding issue try this. It is a tech repair, so if you're not comfy dismantling your device take it to a pro.
I've had some spare time to repair an Omnia7 for a friend [ I was acting middle man between Samsung and him]. Sammy serviced the device 4 times and changed everything ( the mainboard, the sensor, AMOled screen) but the problem kept on showing up.
I have traced the fault to the fact that the sensor is pushed to the right by the ribbon attached to it and thus acting wrong. The tape that is supposed to keep it firmly attached is getting weak in time and allows this migration.
Steps:
1. Take apart your phone. Simple job. Remove battery&sim card. Upper cover pops out, 3 screws. Slide out the back. 2 screws at the bottom and the bottom comes off. 2 screws under that cover and the antenna+mic comes off. 2 middle screws for the plastic piece. 1 silver screw for the upper speaker module. 2 silver screws for the mother board. disconnect 2 connectors (1 up for camera and 1 down for buttons)remove mother board carefully ( lift up a bit the vibrator, volume, I/O and camera buttons. they are attached with double sided tape, disconnect the Screen- it's under mb).
2. Take a look at the sensor PCB. I bet it's moved in opposite of the side where the connection ribbon is. You need to realign it. Lift the earpiece and jack. they are connected to the proximity/ ambient light sensor. Should come out fairly easy,it's only double-sided tape. Realign it with in a fashion that leaves at least 1 mm from the side.
There are different ways to make sure the problem does not appear again. Hot glue- just a droplet , piece of plastic, better double sided tape. Choose whatever you like.
3. Reassemble the phone.
Also, see photos attached. Notice how off centered was the sensor PCB
Lol, man its working
THX

HTC HD2 assembly problem

Hi guys,
I just disassembled my HD2 to replace my broken digitizer and touchscreen.
But now i'm stuck with a problem.
What shall I use to glue both items together again?
And the keyboard makes some issues.
I tried to place both parts over eachother to see if they fit but I can't press the keys after it.
Seems like they are stuck.
That's why I didn't want to use superglue because after assembling it I wouldn't be able to change anything.
Maybe pictures tell more than words.
http://www.youtube.com/watch?v=t8Q7mXdcJ54&feature=player_embedded
hope that helps you
thanks wasn't the information I was looking for but nevermind
I assembled the device now .. but the next problem occured ..
the hd2 is loading without problems (led shows it) but when I try to power it on it's completely dead. nothing happends
with my old touchscreen it was at least possible to power it on.
my question is:
could the new soldered touchscreen + digitizer be broken? or did I break something during disassembly and assembly?
To be honest I didn't see any mistakes I made.
It's not my first time repairing stuff like that because I used to repair notebooks as a hobby.
Still i'm unsure what the heck is going on with my phone atm.
did you check if the flex cable from display is in the port, there is an white stripe that shows how far it must in the port. Did the phone vibrate when you pressed power button?
I checked the cables and found nothing suspicious.
and the phone didnt even vibrate after trying to power it on.
I'm trying to get a new hardkey board (i hope you know what I mean).
Had problems with the keys being stuck and maybe I killed that one by trying to assemble it.
if the phone doesn't recognize me pushing the power on key it's no wonder it won't do anything.
hope this will fix the problem
12dollar said:
I checked the cables and found nothing suspicious.
and the phone didnt even vibrate after trying to power it on.
I'm trying to get a new hardkey board (i hope you know what I mean).
Had problems with the keys being stuck and maybe I killed that one by trying to assemble it.
if the phone doesn't recognize me pushing the power on key it's no wonder it won't do anything.
hope this will fix the problem
Click to expand...
Click to collapse
Most likely something is wrong with your Power button, but you should turn it on with 2nd method:
- pull out battery;
- insert usb cable(connected to PC)/charger in your usb port;
- insert battery.
This way it should turn on whatever OS you have installed on.
If your OS is Android through MAGLDR, connecting it through usb should turn it on by default, unless your battery is not dead!
Check it out!
bib*oops said:
Most likely something is wrong with your Power button, but you should turn it on with 2nd method:
- pull out battery;
- insert usb cable(connected to PC)/charger in your usb port;
- insert battery.
This way it should turn on whatever OS you have installed on.
If your OS is Android through MAGLDR, connecting it through usb should turn it on by default, unless your battery is not dead!
Check it out!
Click to expand...
Click to collapse
I just did as you said and yeah the phone came to life.
so there is definately a dead power button (probably the board is broken)
12dollar said:
I just did as you said and yeah the phone came to life.
so there is definately a dead power button (probably the board is broken)
Click to expand...
Click to collapse
Glad to hear that!
Definitely you should replace your keypad flex!
Did you fix the problem with the hardware keys
Hi,
I have very similar problem.
I changed the touch screen on my HD2 and after reassembling I cannot get the hardware keys clicked.
I ordered a brand new key board and brand new plastic buttons. I received them but situation is the same.
If somebody can explain is there any trick during adjusting the plastic buttons to the clickable "small dots" on the board - please help me.
Best Regards
maznevh said:
Hi,
I have very similar problem.
I changed the touch screen on my HD2 and after reassembling I cannot get the hardware keys clicked.
I ordered a brand new key board and brand new plastic buttons. I received them but situation is the same.
If somebody can explain is there any trick during adjusting the plastic buttons to the clickable "small dots" on the board - please help me.
Best Regards
Click to expand...
Click to collapse
Normally this is always down to glass digitizer not being aligned correctly when stuck to LCD.
0.05mm can make all the difference here.
You need review current digitizer position & pre test assembly to centre chassis without tape for a test run on button function.
Also check button board position is exact & located correctly in the pin holes at each end of the board.
original board quality is normally far better than most of the very cheap eBay pattern parts but one or two sellers offer a decent board around $4.50
Also clean all old tape from back of LCD & centre chassis plate so parts fit flush & once all checked new tape can be added, I also use small spots of up40 adhesive sealant near corners & near middle edges for final build up as holds far better than even the best tapes & gives an original strength & long lasting flush look to final job plus us easily removed with razor blade if repair ever needed again.
Super glue is a BIG no no NO.
Hard to get hardware buttons clickable
Mister B said:
Normally this is always down to glass digitizer not being aligned correctly when stuck to LCD.
0.05mm can make all the difference here.
You need review current digitizer position & pre test assembly to centre chassis without tape for a test run on button function.
Also check button board position is exact & located correctly in the pin holes at each end of the board.
original board quality is normally far better than most of the very cheap eBay pattern parts but one or two sellers offer a decent board around $4.50
Also clean all old tape from back of LCD & centre chassis plate so parts fit flush & once all checked new tape can be added, I also use small spots of up40 adhesive sealant near corners & near middle edges for final build up as holds far better than even the best tapes & gives an original strength & long lasting flush look to final job plus us easily removed with razor blade if repair ever needed again.
Super glue is a BIG no no NO.
Click to expand...
Click to collapse
It is not the case in my case , because I ordered full set (digitizer + display) and they arrived factory assembled.
But you are definitely right - 0.05 mm make the difference. I think the problem comes from the fact that the board with buttons cannot be firmly fixed to the 2 small juts on the chassis. You know the plug of the buttons board is on the tail like extension. Probably when I try to cover the buttons board with the LCD+digitizer - the frame of the LCD slightly pushes the buttons board and the juts on the plastic buttons cannot be fixed exactly on the top of the actual buttons on the board. Anyway we are speaking about precise fixing something around 0.05 mm over something else, which is exactly same size... and in the same time you have to fix this without any visibility.
I will continue trying. If you can give me any other ideas - I will appreciate this.
Thanks
maznevh said:
It is not the case in my case , because I ordered full set (digitizer + display) and they arrived factory assembled.
But you are definitely right - 0.05 mm make the difference. I think the problem comes from the fact that the board with buttons cannot be firmly fixed to the 2 small juts on the chassis. You know the plug of the buttons board is on the tail like extension. Probably when I try to cover the buttons board with the LCD+digitizer - the frame of the LCD slightly pushes the buttons board and the juts on the plastic buttons cannot be fixed exactly on the top of the actual buttons on the board. Anyway we are speaking about precise fixing something around 0.05 mm over something else, which is exactly same size... and in the same time you have to fix this without any visibility.
I will continue trying. If you can give me any other ideas - I will appreciate this.
Thanks
Click to expand...
Click to collapse
Do not rule out the LCD/Digitizer assembly as the china combos are prone to not the best accuracy of assembly as sounds like maybe LCD is mounted just a fraction too low on the digitizer perhaps.
Button board should be fixed via 3M style tape & most replacement boards come with tape ready for fitting.
worth making effort with button board to centre chassis to mount securely then mounting lcd to chassis without tape for a trial assembly & try and check for possible issues such as bent chassis or old tape not removed sufficiently or new assembly alignment not the best.
I would also recommend using original plastic button strip as the copy ones are not always good & have had experience with them before.

[Q] Power button not working

I cracked my screen and replaced the screen, digitizer, and frame. Before replacing it the power button worked fine, in fact turned on just before I got the case off annoyingly. Replaced all the parts, made sure the power button pcb was in place, and charged the battery which causes the screen to light up. But now the power button is not turning on the phone. I'm a bit confused, it feels like its hitting the button. Wonder if anyone has run into this problem when tearing apart there phone and putting it back together? I'm going to check the power button pcb again, and try to power it up with the back off.
Edit: Torn it apart again, checked the power PCB board with my multimeter and I have continuity when the button is pressed. Made sure the power button is touching the logic board to. I starting to think my logic board got fried when I torn it apart. Would the logic board be fried if the screen still lights up when you plug in a charging cable?
Solution: Figured it out. The bent contact pins that touch the logic board 1 had been bent to much in while disassembling and reassembling so it wasn't actually touch the logic board. Couldn't see it till I could the tiny power pcb board out.
Also figured out how I bent it. When you take the black plastic cover off the logic board the clip on the left side is a bit tricky to get off. The only good spot to get under the cover is right next to the power board, and I happen to wedge my pry tool at some point between the logic board and the pin on the power PCB. I also found out I did the same thing on the volume PCB for volume down. So just an FYI to watch out for that when taking this thing apart.

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