The other night, I put my phone on to charge (OEM charger). When I woke up, the charge light was solid even after I unplugged it from the charger. The phone was off (on when put on to charge) and will not turn on now. I have removed the battery for a while and reinstalled. I have removed the sim also and tried that way. I have read in -other- forums that this either means: 1. Phone is toast. Trash it. 2. Battery cover is damaged.
I bought it on ebay and it worked GREAT for 4 months. I flashed it with 6.1 standard just after I got it. I don't belive that the ROM is bad. As for the cover...Mine fits tight. When I flip it over, I see -1- metal piece on it. As I understand from discriptions, it is supposed to have -2-. I cannot find a picture online verifying this. I don't want to pay $15-$20 for a battery cover when I really need to buy a new phone.
So...anyone know how I can fix it? Any (reasonable) suggestions?
Thanks!
Update
I went to a few cell repair shops. Unfortunately, they told me that the motherboard has a short in it and it will need a new one. They also told me that it isn't worth replacing the motherboard ($150 was the quote I got). It would be best if I bought a new one.
Anyone know where I can get a NEW one? Ebay only has used.
Thanks!
laddhorn said:
I went to a few cell repair shops. Unfortunately, they told me that the motherboard has a short in it and it will need a new one. They also told me that it isn't worth replacing the motherboard ($150 was the quote I got). It would be best if I bought a new one.
Anyone know where I can get a NEW one? Ebay only has used.
Thanks!
Click to expand...
Click to collapse
buy one used on ebay, got a motherboard from it, and replace yours
Hi all,
I had to replace the power button flex board of my i9100, but I made a mistake when soldering, and something shorted and a SMD in the board exploded with a *BANG* and went flying like a bright shooting star. Then came the smell of fried electronics, oh boy, that was horrible! Strangely, I couldn't locate which SMD component exploded, the boards looks fine, even if carefully examined with a 10x magnifier.
I thought the board was completely destroyed. But I fixed the power flex cable soldering, assembled the phone, connected it to the USB charger, and guess what?? The recovery menu appeared, some message appeared and quickly disappeared, and the phone booted normally! Everythting worked: network, wifi, bluetooth, camera, etc. However, the power button didn't work anymore, even now it's properly soldered.
I removed the battery to turn off the phone, but now it doesn't turn on with the button. If I plug it to USB, now it shows the charging battery screen, animated and all, but I can't turn on the phone anymore!
So I ask: does anyone know which SMD components take part in turning the phone on by pressing the power button? I can't find this info in the service manual, but I'm sure it's just a matter of replacing a burnt SMD resistor, capacitor or inductor, since the phone works, I saw it working!
So, does anyone have any info for me, or at least a detailed diagram of the circuitry, so I can find my way into that?
Thank you all in advance!!!
Eduardo
Marcovecchio said:
Hi all,
I had to replace the power button flex board of my i9100, but I made a mistake when soldering, and something shorted and a SMD in the board exploded with a *BANG* and went flying like a bright shooting star. Then came the smell of fried electronics, oh boy, that was horrible! Strangely, I couldn't locate which SMD component exploded, the boards looks fine, even if carefully examined with a 10x magnifier.
I thought the board was completely destroyed. But I fixed the power flex cable soldering, assembled the phone, connected it to the USB charger, and guess what?? The recovery menu appeared, some message appeared and quickly disappeared, and the phone booted normally! Everythting worked: network, wifi, bluetooth, camera, etc. However, the power button didn't work anymore, even now it's properly soldered.
I removed the battery to turn off the phone, but now it doesn't turn on with the button. If I plug it to USB, now it shows the charging battery screen, animated and all, but I can't turn on the phone anymore!
So I ask: does anyone know which SMD components take part in turning the phone on by pressing the power button? I can't find this info in the service manual, but I'm sure it's just a matter of replacing a burnt SMD resistor, capacitor or inductor, since the phone works, I saw it working!
So, does anyone have any info for me, or at least a detailed diagram of the circuitry, so I can find my way into that?
Thank you all in advance!!!
Eduardo
Click to expand...
Click to collapse
Hola Eduardo,
you probably used a too high temperature in the soldering iron.
Google for "56542824-Samsung-GT-i9100-service-manual.pdf" and you will find a good service manual that will guide you on a series of problem.
I doubt that there's a procedure for your specific problem, but you may be able to know what SMD you have to replace.
I wish you luck, and next time make sure that the temperature is low (and eventually use a solder paste!)
robdpi said:
Hola Eduardo,
you probably used a too high temperature in the soldering iron.
Google for "56542824-Samsung-GT-i9100-service-manual.pdf" and you will find a good service manual that will guide you on a series of problem.
I doubt that there's a procedure for your specific problem, but you may be able to know what SMD you have to replace.
I wish you luck, and next time make sure that the temperature is low (and eventually use a solder paste!)
Click to expand...
Click to collapse
Thanks for your reply, robdpi!
The soldering iron temperature was ok, I used a 12W Weller micro soldering iron, temperature was not more than 550F / 300C, and I never leave the iron on the work for more than 3 continuous seconds. The problem was a short between two of the 3 pins in the connector. I noticed it only after the accident occurred, testing with my multimeter.
About the service manual, this is the one I have, and the testing procedures (voltages, frequencies) are all OK when plugged to the USB, but they all fail when I try to turn it on with the power button. And you're right, there's no procedure in the manual regarding this specific problem.
Anyway, I will keep trying, thanks again,
Eduardo
Well, after almost an year, I fixed the phone! I'll write about the solution here, to serve as a reference to anyone who needs help.
I managed to find the electrical schematics of the whole phone. With the information given in it, I noticed the connection between the positive battery pin and the flex power button connector was interrupted. Probably the short circuit I did overheated and blew some thin trace on the PCB and it kind of exploded. So I soldered a thin wire between the battery connector and the power button to replace the lost connection, and the phone is now working again! If anyone needs the schematics, just PM me and I will send it over.
But now, I'm back to another issue the phone already had, even before I did the short circuit: the screen shows horizontal lines, blurring the image. It started after I replaced a cracked screen. Does anyone have any idea if it's software or hardware related? May it be a driver issue? I'm from Brazil, and the screen came from Korea (bought at eBay). Should a korean screen work in my phone? Is it possible to confirm or not if it's hardware or software related?
Any help will be great, thanks in advance!
Eduardo
Post a screen.
Sent from the little guy
gastonw said:
Post a screen.
Sent from the little guy
Click to expand...
Click to collapse
I attached 8 pictures showing how the thing looks like. Please note the banding can't be seen on black background, and it's only horizontal. I used red arrows to show the banding. Vertical and curve artifacts are distortions caused by the camera.
If you pay attention to the file names (which have the time each picture was taken) it's possible to see how the thing gets worse with time. In the last pictures, screen goes completely unreadable, it degrades to an almost uniform bluish white.
I already tried flashing a custom kernel as suggested on another thread, but it didn't help. Already tried stock 4.0.4, that didn't work also.
Thanks a lot for any help.
Eduardo
Marcovecchio said:
I attached 8 pictures showing how the thing looks like. Please note the banding can't be seen on black background, and it's only horizontal. I used red arrows to show the banding. Vertical and curve artifacts are distortions caused by the camera.
If you pay attention to the file names (which have the time each picture was taken) it's possible to see how the thing gets worse with time. In the last pictures, screen goes completely unreadable, it degrades to an almost uniform bluish white.
I already tried flashing a custom kernel as suggested on another thread, but it didn't help. Already tried stock 4.0.4, that didn't work also.
Thanks a lot for any help.
Eduardo
Click to expand...
Click to collapse
i have the same isue with my phone and i have another motherboard , but it didn't work....
ps: my screen is a genuine one
kozimcfly said:
i have the same isue with my phone and i have another motherboard , but it didn't work....
ps: my screen is a genuine one
Click to expand...
Click to collapse
You mean you tried the screen on two motherboards, and it shows the same problem on both? Could you please tell the country of origin of your motherboards and screen? I suspect it may be a hardware incompatibility issue.
In other words: motherboards sold in country X may not "talk" correctly to screens from country Y. My i9100 is from Brazil, but the screen came from a Korean seller at eBay.
By the way, does anyone know if the official firmwares come with low level hardware drivers? Is it possible to "transplant" the video driver from an asian firmware, to a south america firmware, for example?
I know about android phones which changed the wi-fi chip during their life cicle and this transplant used to be made, and worked. I would like to try the same for video.
Thanks!
Eduardo
Marcovecchio said:
You mean you tried the screen on two motherboards, and it shows the same problem on both? Could you please tell the country of origin of your motherboards and screen? I suspect it may be a hardware incompatibility issue.
In other words: motherboards sold in country X may not "talk" correctly to screens from country Y. My i9100 is from Brazil, but the screen came from a Korean seller at eBay.
By the way, does anyone know if the official firmwares come with low level hardware drivers? Is it possible to "transplant" the video driver from an asian firmware, to a south america firmware, for example?
I know about android phones which changed the wi-fi chip during their life cicle and this transplant used to be made, and worked. I would like to try the same for video.
Thanks!
Eduardo
Click to expand...
Click to collapse
both of them from belgium
This is either a screen problem or a battery problem.
What happens when you swap batteries?
Sent from the little guy
gastonw said:
This is either a screen problem or a battery problem.
What happens when you swap batteries?
Sent from the little guy
Click to expand...
Click to collapse
I have only one battery, so can't swap to test. But could you explain how could the battery cause this problem?
I just measured the battery voltage with a digital multimeter, and it's 4.15 V, fully charged. This is almost a half volt above the 3.7 V it should be. Do you think this may be the cause for all the problem?
Many tthanks!
Yeah, screen might not getting enough juice.
Sent from the little guy
gastonw said:
Yeah, screen might not getting enough juice.
Click to expand...
Click to collapse
I did another test: measured the battery voltage with the phone turned on, to check the voltage drop caused by phone load, but it seemed normal. With phone on, battery measured 3.8V approximately, which is a little less than the 4.15V I got without load. The battery indicator shows 75% battery charge. It looks like the battery is behaving well under load.
Anyway, I will try another battery as soon as I can.
Thanks again,
Eduardo
Well, I did test with another battery and the problem persists. Should I give up and consider it's really a screen hardware problem?
Thanks,
Eduardo
My guess was on the battery, I guess I'll take the screen problem then.
You should have it checked it out with a tech guy.
Sent from the little guy
Well, I think I went as far as I could. I replaced all 20 tiny SMD components from the display flex PCB with the ones from the old display, which cracked.
But it didn't work, the problem remains. Now I think the problem lies in the AMOLED screen itself, or perhaps in the main phone board. Who knows if the main board is sending dirty electrical signals to the display?
Anyway, I think I will just sell the phone the way it is, I can't afford spending even more money on this phone.
Thanks for the help, gastonw!
You got it Eduardo.
Sent from the little guy
Hey guys, I have an LG G3 with a broken charging port (does not appear to accept a charge from the original cable).
I'm wondering if anyone else has had this problem and has been able to fix it?
I am capable of taking the phone apart and experimenting, however it seems as if the port itself is more difficult to access, even after disassembling the phone.
Let me know if you have any fixes I can try to attempt to get the phone to receive a charge once again, thanks!
TyWillems19 said:
Hey guys, I have an LG G3 with a broken charging port (does not appear to accept a charge from the original cable).
I'm wondering if anyone else has had this problem and has been able to fix it?
I am capable of taking the phone apart and experimenting, however it seems as if the port itself is more difficult to access, even after disassembling the phone.
Let me know if you have any fixes I can try to attempt to get the phone to receive a charge once again, thanks!
Click to expand...
Click to collapse
Send it back to be fixed or replaced. Phone hasn't been released for a year yet, so its still under warranty.
Ahh thank you for the info. You see I actually have two of these now. Mine, which is in excellent condition, and a second one I received that has a cracked top glass screen and damaged rear cover.
Do you know if they will fix the USB for free if I replace the glass and back cover? I don't see why that would make a difference if I am not asking them to replace either of the obviously broken-by-use components.
I guess I will give them a call and find out for myself. I'll edit this post if I find out news, just for anyone else who may encounter something similar.
Thank you.
EDIT:
So I've decided not to send the phone back to be looked at. After examining the port, it is clearly broken, and while it still appears to allow the cord to plug-in, it is obviously broken. I've decided to just spend 18$ on Ebay for a new Backdoor with wireless charging compatibility and see how that works out.
TyWillems19 said:
Ahh thank you for the info. You see I actually have two of these now. Mine, which is in excellent condition, and a second one I received that has a cracked top glass screen and damaged rear cover.
Do you know if they will fix the USB for free if I replace the glass and back cover? I don't see why that would make a difference if I am not asking them to replace either of the obviously broken-by-use components.
I guess I will give them a call and find out for myself. I'll edit this post if I find out news, just for anyone else who may encounter something similar.
Thank you.
Click to expand...
Click to collapse
i would defiantly repair the other items before sending it in. no reason to give them an excuse to not repair the port, if you are going to fix the other items anyways.
Please can anybody with experience of galaxy s6 repair help.
A couple of weeks ago I turned of my s6 one night, next morning I tried to turn it on but it wouldn't, it was completely unresponsive, black screen no lights, the phone has never been dropped or damaged in anyway or been anywhere near water.
When it was switched off the battery was almost fully charged, so I knew it wasn't a dead battery but I tried the charger anyway. There was no charging light and the back of the phone near the rear camera got quite hot within a couple of minutes. I tried a soft reset but it didn't work.
So then I took it to a local phone shop for repair. The guy in the shop said that he'll send the phone of the workshop for a diagnostic. Anyway he called up and said the motherboard is faulty and needed to replaced. Now he phoned up again and the guy who is fixing the phone is now saying the screen also needs to be replaced, apparently the backlight is not working. Now I know amoled screens do not have any backlight, so I asked him what exactly is wrong with the screen as it's a amoled screen it doesn't have a back light, he said he doesn't know just the engineer said the backlight doesn't work. He said the repair would cost £149.
My question can a faulty motherboard damage the screen? is he what he is saying plausible or is he trying a con?
Thanks in advance for any reply's.
bossrat45 said:
Please can anybody with experience of galaxy s6 repair help.
A couple of weeks ago I turned of my s6 one night, next morning I tried to turn it on but it wouldn't, it was completely unresponsive, black screen no lights, the phone has never been dropped or damaged in anyway or been anywhere near water.
When it was switched off the battery was almost fully charged, so I knew it wasn't a dead battery but I tried the charger anyway. There was no charging light and the back of the phone near the rear camera got quite hot within a couple of minutes. I tried a soft reset but it didn't work.
So then I took it to a local phone shop for repair. The guy in the shop said that he'll send the phone of the workshop for a diagnostic. Anyway he called up and said the motherboard is faulty and needed to replaced. Now he phoned up again and the guy who is fixing the phone is now saying the screen also needs to be replaced, apparently the backlight is not working. Now I know amoled screens do not have any backlight, so I asked him what exactly is wrong with the screen as it's a amoled screen it doesn't have a back light, he said he doesn't know just the engineer said the backlight doesn't work. He said the repair would cost £149.
My question can a faulty motherboard damage the screen? is he what he is saying plausible or is he trying a con?
Thanks in advance for any reply's.
Click to expand...
Click to collapse
A faulty motherboard can damage the screen (in various ways). All screens have backlight (except for screens like the old Nokia 3310 had) so the layers of your screen might be damaged or have leaked since there is a fluid "sticking" the layers together. This is (obviously) not a software problem, but I would like to know if you were rooted, had any custom ROMs/kernels and did you have XPosed installed. How did you root and did you have a custom recovery?
All my statements are afaik (as far as I know) and based upon real life experiences, if anything I wrote is wrong, feel free to correct me as we are all learning .
Thanks for the reply, I hadn't rooted the phone, all I had done was replace the vodafone firmware to stock firmware as I was no longer on vodafone and wanted to remove all the bloatware, but that was many months ago and everything was working fine.
I just find it odd that a perfectly working phone can be damaged so badly for no obvious reason, it wasn't plugged into the charger, I just turned it off one night put it on my desk, tried to turn it on next morning and it was dead.
So does the repair seem legit to you? I am just a bit weary as I know how easy it would be to charge for parts that aren't necessary. Also is there anyway I could check if the screen has really been changed as the display on my phone was in perfect condition, not a single mark or scratch or any thing to identify it against a brand new screen.
bossrat45 said:
Thanks for the reply, I hadn't rooted the phone, all I had done was replace the vodafone firmware to stock firmware as I was no longer on vodafone and wanted to remove all the bloatware, but that was many months ago and everything was working fine.
I just find it odd that a perfectly working phone can be damaged so badly for no obvious reason, it wasn't plugged into the charger, I just turned it off one night put it on my desk, tried to turn it on next morning and it was dead.
So does the repair seem legit to you? I am just a bit weary as I know how easy it would be to charge for parts that aren't necessary. Also is there anyway I could check if the screen has really been changed as the display on my phone was in perfect condition, not a single mark or scratch or any thing to identify it against a brand new screen.
Click to expand...
Click to collapse
Hmmm, okay.
If you have the right tools you can probably make a mark with a marker or something that won't damage the screen and then when they "replace" it you can check if it is still there. By the way, I don't mean on the screen but on that metal part on the underside of the screen. If you don't want to make such a thing because you maybe don't have the necessary tools, make a tiny scratch that you can locate but won't affect using the phone or not visible unless you really take a close look. If you don't want to do that you can take it to an official Samsung retailer or send it to them (this is probably the most recommended option).
Unfortunately the phone already at the repair shop, I got a call a few days ago telling me that the logic board was damaged and needed to be replaced, I agreed to that repair, now he called again today and said the display also needs to be changed. That's why I'm a bit suspicious, I can understand how the motherboard maybe faulty and may have died, but the display also? maybe he damaged the display when trying to change the motherboard or he's charging for unnecessary work or maybe he's telling the truth and the faulty motherboard killed the display, I don't know.
I was wondering if there's something in the firmware which keeps count of the number of times a part has been replaced or how long the display has been used for or a way I can check the date of the display manufacture without opening the phone.
bossrat45 said:
Unfortunately the phone already at the repair shop, I got a call a few days ago telling me that the logic board was damaged and needed to be replaced, I agreed to that repair, now he called again today and said the display also needs to be changed. That's why I'm a bit suspicious, I can understand how the motherboard maybe faulty and may have died, but the display also? maybe he damaged the display when trying to change the motherboard or he's charging for unnecessary work or maybe he's telling the truth and the faulty motherboard killed the display, I don't know.
I was wondering if there's something in the firmware which keeps count of the number of times a part has been replaced or how long the display has been used for or a way I can check the date of the display manufacture without opening the phone.
Click to expand...
Click to collapse
Unfortunatly, no,but if the phone is working after the repair that means it is fixed! If not, they will give you a replacement since they test everything to make sure it works.