I may have just screwed my phone up...
Does anyone know of any alternative ways to power the phone up other than the power button?
Here's the story,
A small plastic piece off of my backplate that keeps it held on broke off. Since it is an aftermarket part, I thought I would open the case and get this small piece of plastic out. No big deal, remove the screws and just grab it. Well, in the process of doing that, the small screw driver I was using to gently pry the red plate off with slipped. Well I got it off thinking no harm no foul and removed the renegade plastic bit.
Well upon full reassembly, I tried to power it back up to find that it no longer powers up. I think when I slipped, I may have damaged the power button circuit. I say that because when I plug in the charger, the light still comes on. So... Is there a way to power the phone up without the power button?
I know I will end up taking it back but for right now I just want to be able to use the phone and such. Once booted, I can change how to unlock the screen but damn...
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I tried to replace my vogue after the screen cracked and power button broke, but Sprint/Asurion want $100 to replace it. Turns out it was only the digitizer that cracked so I'm trying to fix the power button myself, then simply replace the digitizer for ~$10.
My problem is that the power button completely broke off from the mainboard. I tried to solder it back on without a result, and I'm wondering if I'm missing a step. The board has 5 separate solder points, but it looks like only 3 are actually making a connection to the button (so I soldered only those). From the looks of the soft reset button, it seems that the two other solder points don't actually bridge any connections, but are touching the underside of the button where it's not metallic.
Obviously I'm missing something here, anyone have a clue?
hate to say it but id just pay the $100 for a refurbish or id look on craigslist or ebay for a replacement.
All you need to do is solder those three solder points. make sure you are using flux so it flows well and keep it straight. I had an issue after I put the case back on and the button on the case not lining up with the switch. Make sure you try to power the phone on before you put the case back on. I would leave the digitizer plugged in just in case.
Using the simple diagram below, soldering the 1-2-4 points didn't make it work. I was able to mimic the button by bridging the 1or2or4 with the 3or5.
1___2
3_4_5
Not sure what else I can do at this point beyond putting in a small momentary button that makes one of these connections, it will make the device look incredibly ghetto though
it is possible when it broke off it took one of the solder pads with it, after you take the button off see if all the connection points are still silverish in color if any are tan unfortunately you will have to go through asurion, there is no way i know of restoring them after that point
Okay, I read that someone lifted part off the front by removing a screen saver! Now with me, I recognized that on the left side bottom, left to where the slideview and call buttons are under, the ENTIRE part seems to come up.
It is lifting itself and I bet in a few days/weeks this will get off.
So my question is if anybody had this happen and knows what is under there? Is there a possibility to GLUE it back on?
Now since I am watching this, I think the ENTIRE front can come off eventually and if it is just glued on at the bottom where one has to press the buttons all the time, it is only a matter of (short!) time until this gets out of hand.
Anybody found anything about taking this phone apart yet?
That happens to my phone, I do not bring it back because I buy it in a duty free shop here it japan and also that is the only issues on my phone and only some bugs. I just press it always there to bring it down but it keeps popping up. I think i can glue it, so I do it to fix the problem. Just be carefull if you do it, I notice that under the plastic screen there are buttons (as I think it is) the hard part that you feel when pressing the slideview or call. When you use a liquid glue and put to much, it can go to that button and worst may stuck that part or go inside the phone and also the part where the mic is. I put glue just on the sides just make sure to put small amount at a time. I cannot give the brand of the glue that I use because its in japanese.Now only the small part in the call buttons is up a little because I cannot put enough glue on that part, but in the slide view button its now okay and working well.
This is my firts post on xda hope it helps a little.
I'm hoping somebody with some knowledge of the HD2's innards can help me...
My vibration stopped working on my HD2. I found the plastic LED flash cover to be 'pushed in' (with the help of a couple xda threads I dug up). Others said it was an easy fix: Open the case and push that piece of plastic back into place.
I opened up the case to correct it. But after putting it back together not only does vibrate not work, but the volume keys, speakers (both earpiece and speakerphone), flash, notification led, and camera all don't work.
I obviously screwed something up, but I have no clue what it could have been. I was very careful. One thing I'll note is that when I pulled the case apart, the plastic volume rocker went flying. When putting the phone back together I got it back into place so that I THOUGHT it should work (it was seated properly and felt "clicky" for up/down movements.
But clearly wasn't just the volume rocker that was affected. It doesn't seem that I pulled anything else loose or anything like that...
But no luck, all that I listed above is non functional, and what I'm left with is a glorified 3.5 in tablet
Any ideas?? Thanks in advance!!!
Snapped a couple quick pics which may help:
http://i50.tinypic.com/mmsa36.jpg
http://i47.tinypic.com/sl1kdx.jpg
Unfortunately when comparing these to other pictures of the inside of the HD2 that I found online, I fail to see any differences, or anything I could have inadvertently screwed up.
Most likely you screwed up(or disconnected from motherboard) somehow your main flexboard, but your picture are not usable for this, you should take off your motherboard+main flexboard from chassis to have a full view!
You probobly just disconnected a small cable. I have no idea of the HD2 innards but did multiple repairs of small stuffs and the flat cables hold in place by a plastic clicker pull out easily - just reopen and check them all, you should be fine.
Thanks for the input! I figured it's something like that, just one small cable. But I didn't even take off the board at all... The pictures show the full extent of the disassembly... Do we still think it's necessary to disassemble it further?
I checked all visible connections, but yeah, maybe I somehow yanked out something that is NOT visible. I'll try to check again today... In the meantime, any more ideas from anyone else? Thanks!
For al that to be not responding I would assume main-flex damaged or as mention before maybe connection to mainboard got moved during pulling cover !
Volume button can be troublesome, sometimes the little plastic caps come off but if it felt clicky should be good in that respect.
also be very carefull of thin spring metal legs that contact antenna pads on back cover, one near screw above & right of vibro motor looks a to be a bit flat. They bend easily & break easily too ...
Have u tried starting up the phone without the backing? I had this issue when I painted my housing the led cover was stopping the motor from spinning but if i took out the backing it works. So I just trimmed the led cover and now it works.
Mister B said:
For al that to be not responding I would assume main-flex damaged or as mention before maybe connection to mainboard got moved during pulling cover !
Volume button can be troublesome, sometimes the little plastic caps come off but if it felt clicky should be good in that respect.
also be very carefull of thin spring metal legs that contact antenna pads on back cover, one near screw above & right of vibro motor looks a to be a bit flat. They bend easily & break easily too ...
Click to expand...
Click to collapse
I'm nooby with regard to this stuff; I only attempted the repair since I read in a couple other threads about multiple self-proclaimed non-super-tech savvy people were able to open it up and move the plastic LED cover for an easy fix.
So what exactly am I looking for with regard to the main-flex? Where is it? I thought I wouldn't really see that unless I removed the board which I haven't done... is it still possible I knocked it loose or damaged it? I didn't think that would be possible since I ONLY removed the back cover (though it does take a slightly uncomfortable amount of force to do so, so I guess anything can happen...).
If not the main flex cable, is there anything else specific to look at which may be disconnected? It seems to be all the stuff at the top of the phone that fails to work (camera, speakers, vibration, flash, volume keys). While the stuff on the bottom (other hardware buttons, charging jack, headphone jack, etc).
THanks!
I have given up. After being stumped briefly how to hard reset the device without the volume keys working (I have Android installed), I was able to do it via ADB from the Android dev kit.
To ebay I go...
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.
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.