Develop Bugs

It's dead Jim, dead

Hi, I have a dropped MDA III. I Replaced the broken touch screen, now nothing works. No lights or screen, just gets hot when on charge. Won't hard reset and can't get into bootmode.
any ideas, apart from the bin?

rocketrobot said:
Hi, I have a dropped MDA III. I Replaced the broken touch screen, now nothing works. No lights or screen, just gets hot when on charge. Won't hard reset and can't get into bootmode.
any ideas, apart from the bin?
Click to expand...
Click to collapse
I don't think the dilithium crystals can take it any longer.

she canny take much more than this cap'n

Hi friend ,
please check follow this.
+ Power botton
+ Battery contact ( any cracked on it ??)
+ Re-solder flash and RAM, and power IC by hotgun
it can be rescued 65%
It can be
+
+

The first time I changed the tochscreen digitiser on my Orbit I had this. After much messing about I tried putting the cases back together without the power button in the case, and when I pressed the power button inside with my stylus it worked fine. The reason I tried this was because months before my power button was messing-about, working intermittently.
I tried fitting the button back in and re-assembling the cases but still the phone wouldn't come on. In the end I shaved about 1mm off the silicone press-pad on the back of the power button and it worked 1st time.

Boot loop or power button?

Ok here's the problem
My brother's GS2 is on stock gingerbread, just rooted. For a long time over 4 months it worked fine. Just randomly since 2 days if u turn it on it keeps buzzing. It might turn on go through the splash screen but halfway through it will buzz again. If i hold any buttons it might go into odin mode or cwm but just restart by itself after. Anyone have any suggestions how to fix this? I can't afford another phone.
Also if I put the battery in the phone buzzes and starts to boot itself without me pushing the power button. I tried taking the board out. Took some alcohol and cleaned up the power button and charging port. Let it dry for a few hours then plugged everything back together and its still doing the same thing. Power button seems like a tight solder so i dont want to mess with it unless I absolutely need to

"bump"
Please any help would be greatly appreciated. Thank You

Read this thread
http://forum.xda-developers.com/showthread.php?p=29016555
Its the power button.
Sent from the pink Unicorn from the Darkside.

[Q] Desire wont start up. The screen just keeps flashing.

So i went out on a night out and my battery went flat whilst i was out. I come to start it after charging it up and it just keeps popping up with the start up screen for a split second and then going off. It keeps doing this until i unplug the charger or take the battery out. I managed to get into the reboot screen and tried starting it from there to no avail. The battery is only a couple of months old so that should be good.
I took it to a phone repair shop and they said the board was gone and that there was nothing that could be done with it. Is this the case?
I don't generally turn it off just keep charging when it gets below 20% battery life. I did however install solitaire since i last powered it down if this might have any influence on the situation.

Check if you can get into the bootloader. Hold volume down and power.

Chromium_ said:
Check if you can get into the bootloader. Hold volume down and power.
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Click to collapse
I have tried this but although it comes up with the bootloader screen it flashes off gain as with the boot up screen. It does not give you time to do anything in the bootloader.

mikeryan8878 said:
I have tried this but although it comes up with the bootloader screen it flashes off gain as with the boot up screen. It does not give you time to do anything in the bootloader.
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Click to collapse
Are you sure the battery isnt completely dead? Did you drop the phone or do anything that may have caused this, or did it just suddenly occur?

Chromium_ said:
Are you sure the battery isnt completely dead? Did you drop the phone or do anything that may have caused this, or did it just suddenly occur?
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No i have charged and recharged it until the green light comes on. The chap at the shop tried another battery also and this had no effect on it.
I dont recall dropping it. It is in a substantial wallet holder so i would think that would take the brunt of the blow even if i had. But it worked fine all night until it powered down then it just started to play up.

Right while messing a bit further it seems to me that the on off button is constantly activating. If i just hold the return button it comes up with the reboot screen and allows me to choose the various options. If i hold the volume button the fastboot screen appears but disappears just as quickly. All of this happens with out me touching the on off button so it looks like it is constantly trying to start up. The button does not have any visible signs of damage. Is this a normal failure point for these phones?

If it charges completely while it's off, then the board should be fine. You can check the percentage in your recovery mode if you can get there.
If the board is fine, it either means that the button is stuck or you have some gunk short circuit in the button.
If it's gunk, you might get away with some rubbing alcohol, If it's in a spray can, even better. If it stuck, it should be opened and see what's keeping it pressed.
I hope this helps.
Sent from my HTC Desire

[Q] Phone restarts and turns off

My tmobile galaxy s3 was turning on by itself as soon as i put the battery in it. The phone would stay on for about 5 seconds then turn off. This repeated itself over and over again as soon as i put in the battery in.
I took it in to get repaired and the guy told me its the power switch so he replaced it.
I rooted my phone and put a 4.3 rom on it. Everything started up fine and installed properly.
2 days later the same issues on it turning on by itself and turning off. I took it in to the same shop and they are blaming me for a bad root.
Any thoughts?

Hackit5 said:
My tmobile galaxy s3 was turning on by itself as soon as i put the battery in it. The phone would stay on for about 5 seconds then turn off. This repeated itself over and over again as soon as i put in the battery in.
I took it in to get repaired and the guy told me its the power switch so he replaced it.
I rooted my phone and put a 4.3 rom on it. Everything started up fine and installed properly.
2 days later the same issues on it turning on by itself and turning off. I took it in to the same shop and they are blaming me for a bad root.
Any thoughts?
Click to expand...
Click to collapse
It could be a problem with the power button. I had a similar problem with my gs3 when I bought it used. If you take the battery out and then put the battery back in and the phone boots up by itself without touching the power button then it might be the same problem I had..
I don't recommend this fix for everyone with a power button problem but in my case it fixed it and it's been perfect ever since I did this..
I fixed mine by taking my phone apart and taking my dremel tool with a fine grinding wheel and sanding just a millimeter or two off of the face of the internal power button. The silver power button that you see on the outside of the phone is just a cover that presses on the internal button which is just a tiny micro switch. I found that the external button was always putting pressure on the internal button and causing the phone to constantly reboot. By sanding a bit off of the internal button it gave it some space so it wasn't always putting pressure on the button. There's a few video's on youtube that show how to take the phone apart to get to the power button. It's very easy.

Nexus 7 Gen 2 won't turn on

Okay, here's the story. My Nexus 7 Gen 2 went into the water for half an instant. However, when I tried to turn it off immediately, it wouldn't turn off. I put it in a container of rice for a couple of days and eventually, it turned off - the battery died, I'm sure. Anyway, now, when I plug in the charger, I get the battery charging symbol, however, it will still not turn on. I've tried some of the button combos mentioned (hold power for 30 seconds, hold power and volume up for 3-5 seconds, hold power and volume down for 15 seconds, even hold power for 2 minutes), yet nothing seems to work. But as soon as I unplug it and plug it back in the charge symbol appears. Any suggestions?
Thanks!
Chris

Okay, read some more on here and got it into boot load mode. Pressing the up arrow puts the start arrow at the top of the screen pointing to the power button, the down arrow "restart bootloader", however, pressing the power button does nothing.
Info on screen:
Fastboot mode
Product name - flo
variant - flo 16g
hw version - rev_e
bootloader version - flo-04.06
carrier info - none
serial number - 0af16079
Signing - yes
secure boot - enabled
lock state - locked

tchudson said:
Okay, here's the story. My Nexus 7 Gen 2 went into the water for half an instant. However, when I tried to turn it off immediately, it wouldn't turn off. I put it in a container of rice for a couple of days and eventually, it turned off - the battery died, I'm sure. Anyway, now, when I plug in the charger, I get the battery charging symbol, however, it will still not turn on. I've tried some of the button combos mentioned (hold power for 30 seconds, hold power and volume up for 3-5 seconds, hold power and volume down for 15 seconds, even hold power for 2 minutes), yet nothing seems to work. But as soon as I unplug it and plug it back in the charge symbol appears. Any suggestions?
Thanks!
Chris
Click to expand...
Click to collapse
If you put the tab in the rice container without removing the back, you don't know if all the moisture that seeped in has been removed. You need to disassemble the thing, dry each and every component inside with a blow dryer ( both sides of the electronic boards) to make sure of that. Thereafter, you can try again. Because even if you succeed in flashing the OS anew, you'll never know when the residual moisture will interfere or affect the components again.

graphdarnell said:
If you put the tab in the rice container without removing the back, you don't know if all the moisture that seeped in has been removed. You need to disassemble the thing, dry each and every component inside with a blow dryer ( both sides of the electronic boards) to make sure of that. Thereafter, you can try again. Because even if you succeed in flashing the OS anew, you'll never know when the residual moisture will interfere or affect the components again.
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I didn't use a blowdryer, but it sat out on a table with the back off for about 24 hours and I do live in southern Colorado in the high desert, so humidity isn't a huge factor. I may give that a try today, though. Thanks.

tchudson said:
I put it in a container of rice for a couple of days and eventually, it turned off - the battery died,
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Click to collapse
I'm afraid some corrosion has set in already and it may not be reliable anymore.
Next time, you should immediately disassemble it and disconnect the battery, then use a hairdrier to remove the moisture ASAP.

k23m said:
I'm afraid some corrosion has set in already and it may not be reliable anymore.
Next time, you should immediately disassemble it and disconnect the battery, then use a hairdrier to remove the moisture ASAP.
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So, given that it will open into the reboot screen and the volumen buttons seem to work but the power button itself doesn't work, could it be possible to replace the power and volume buttons and get it to restart? Just wondering if I can manage to salvage this thing.

tchudson said:
So, given that it will open into the reboot screen and the volumen buttons seem to work but the power button itself doesn't work, could it be possible to replace the power and volume buttons and get it to restart? Just wondering if I can manage to salvage this thing.
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Click to collapse
Yes, try to replace or test with multimeter the control buttons assembly first but if it does not help then remove the motherboard and its shields, and check it for any visible signs of corrosion. Scratching off a conductive corrosion layer may fix it.
:fingers-crossed: