Hey all, I have an sgh-i927 that won't charge properly and boot loops as soon as I put the battery in because the power button is stuck in the 'on' state... Is there anything I can do to remedy these problems? I've read with other phones that re-flowing the solder with a fine-tip soldering iron will sometimes fix the power button problem, but I honestly don't know what to do with the usb cord (tried two so far...)
If anyone knows someone who can replace or repair these or where to get a replacement motherboard, any help would be greatly appreciated. Thanks in advance!
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What should I do?
There's no way I can afford a new motherboard, and it seems impossible to remove the power button flex for replacement without instructions, re-attaching a new one would be fairly easy I imagine, but I desperately need help for this one.
Are you absolutely sure you've broken it? Did you fix it? I have seen a couple devices where the flex cable pops out of its connector (especially if you go disassembling the device) but ever so slightly that the power button works only sporadically. The fix seems to be to reconnect the flex cable and the power button starts working.
torn power cable!!
ShadowOfScales said:
What should I do?
There's no way I can afford a new motherboard, and it seems impossible to remove the power button flex for replacement without instructions, re-attaching a new one would be fairly easy I imagine, but I desperately need help for this one.
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Click to collapse
I have replaced smashed screens and uodated the battery, then after I needed to hotwire the battery so I could finish flashing a ROM, I have carelessly managed to slightly tear the power ribbon up near the switch button. GRRRRR
I am about to attempt to drop a slither of solder across a slit I'll make with an exacto knife and see if I can get anything. It will power on as I added a switch in the NiMH battery pack I made up and was surprised that I couldn't make any selections while I was doing stuff in the bootloader functions. Bugger. I mabaged to relock the bootloader as I was going stock for something, then after power drain (I now realise that it doesn't charge your phone while in the bootloader screen) and now with a re-locked bootloader, I cannot select 'yes' to unlock the bootloader again suggestions? ...meanwhile, I'm about to probably waste my time attempting McGyver ribbon cable surgury.
I did actually manage to repair a ribbon cable using enamelled wire (30 awg) and a microscope but eventually just replaced the cable.
I bought a cable similar to the one you want for approx £5 which arrived 2 days later.
The on off switch and the other end are just held on with 2 sided tape, so will gently peel off by prying beneath them. I did think the other end would not come off.
My advice replace the cable.
Hey guys so I'm kinda starting a project. would love some help, so my Optimus got screwed up a ways back and the accelerometer and light sensor got screwed up. so I found another on with a broken screen on it and swapped the motherboard to make a 100% working one. I want to use the old one on a tv, like find a usb to hdmi and use the phone on a tv and get a Bluetooth keyboard. problem is, the phone wont power up without a battery in it. Does anyone know of a trick that I can plug the phone into usb power and power it up with no battery?
So while trying to replace my screen it seems like I tore the flex cable for the power button. Now I cant turn my phone on. Ive googled around and cant seem to find anyone selling replacement cables. Anyone know where I can get one or am I screwed?
Hello guys,
I have replaced my battery today, but it seems as I was struggling to remove the glue I have ripped the side buttons ribbon cable a little, therefore the power button is not working and I can't power on the device.
When I plug it in a computer, I can see it charging. In device manager it is showing up as DVD Device - HTC Android Phone USB Device and as a USB Mass Storage Device. I have tried fastboot and adb and they are not responding.
I only want to power on the device, so I can use it, because for a new cable to arrive it will take like two months.
Any help is appreciated.
Thank you in advance.
EDIT: This is the part where it got ripped.
As I was looking for a cable from ebay, I noticed something. The cable there on the bending has only one track!
The first thing I immediately tried was touching the two parts of the cable to try to reconnect it, so I can at least power the phone on, but it didn't work.
What I was also thinking is to put some kind of conductor between the rippage, but I thought there were more than one path on the circuit and that I can put electricity where I don't want it.
Now, looking at this one circuit path do you think putting a solder wire in between could transfer the power up signal? Or is it not a good idea? Is it possible that there are more connections inside beside that track?
P.S: I am not a very good electrician, I have soldered some pins, but I really have no deep knowledge in that area.
EDIT: I have fixed this by buying a new module from ebay and replacing it.
Hello fellow Xda forum members, I'm hoping someone can shed a light on what has happened to my Samsung P5210 tablet. Unfortunately this tablet has turned off and will not swtich on at all, my pc & odin don't recognize it. I've charged the battery externally but it won't turn on, & if I plug it into a wall charger the motherboard starts heating up on the upper right hand side of the tablet (under the power button). I've unplugged all flex cables and even changed the power connector cable but to no avail. I've tested the power connector on the mainboard with a voltage pen tester & no voltage passes when the tablet is being wall charged or when the battery is connected. Has any ever had this problem & how did they solve it? I'd really like to recover my files that were on my tablet if it was possible. Thank you for any assistance provided. Rocco
Does your PC recognise it in Device Manager?
Thank you Jespert for your reply. No, unfortunately neither desktop pc's nor laptops recognizie the tablet. I had the chance to bring my tablet to a technician
for repairs and he was able to turn on the tablet externally without using the battery and they kind of think that a transisitor could be at fault as the battery and connectors work perfectly.
maybe display problem? mine won't turn on so I disconnected the display cable and put it back in and it worked
Hi Andrei the Android Guy, thanks for the read & reply. I replaced the flex cable & disconnected the battery connector which worked in the past, so I think I can eliminate all other possibilities (I did unplug all other flex cables just in case). The tablet warms up when charging so I checked up on the internet & it seems that these series of Samsung tablets suffer from power management problems, something which was confirmed from the technician I brought it too for repairs (they managed to boot it up by rebuilding the charging circuit & it worked fine). I'm really griping about the fact that I couldn't copy my files before it turned off.