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Something really weird happened to my O2 mini s. I just saw all the LED lights flash and then the phone vibrated and went blank. I did a soft reset it restart but then the same thing happened. I did a hard reset it was all ok, then when the O2 software began installing it did the same. Flashed all LEDs including the flash led vibrated and went blank. I though it was the battery. Changed the battery and it would refuse to wake up, just switch on all LEDs and keep vibrating. This kept happening for several times, and then suddenly all was ok. Re-installed an all, all is fine now. But I wonder what happened? And will it happen again? Any explanation by anyone would help. Thanks in advance.
This sounds like a hardware fault to me.
Can you think of ANY outside influences? Things like extreme temperature exposure, exposure to high humidity, or very fast changes of temperature or humidity could all cause shorts or low resistance conditions. I don't know that any of these historically lead to the type of fault you experienced specifically in Wizards, but from an electronics standpoint, anything of this nature could cause bizarre but temporary faults. Even dropping it could cause you problems of an unusual nature.
If the answer to any of the above (except dropping) was yes, do this:
Gather up all the desiccant you can find. This stuff can be found in bags of jerky, and in just about any electronics box ever packed. Sometimes I find little "jars" of desiccant in medicine bottles (long-acting antacids, in particular). Put the phone in a plastic zip-top bag in a warm, dry place with all of the desiccant inside and seal it up tight. Leave it for at least 12 hours, but 24 would be better. Throw away the desiccant when you're done.
If you can't come up with an outside cause for the fault, you may just have to chalk it up to the age of these phones. They are far from new. Even if you just bought yours, chances are good that it is refurbished, and electronics, like fruit, will go bad eventually.
Thought so...
Thanks for your detailed reply. I think the temperature would be the reason. I am in India and that too in the Southern part and its been awfully hot these last few days (40 deg. C or more) yesterday I was in my room and had switched on the air conditioning, the phone was near the ac for a while. Then I did switch off the ac, probably this fluctuation caused to form moisture? It was behaving weird but its ok for the time being... for the last 12 hrs or so. I am waiting for 3G services in India before I decide on my new phone, so I hope this lasts for another 6 months. Hope! Thanks again, will try your method if this happens again.
The problem is back and won't go away. Should I bury my phone? Or is there hope? Any help would be appreciated. Thanks in advance.
If dessication didn't work, you can also try swapping batteries with someone (best to do this while the problem is presenting itself).
You can also try doing a hard reset as a last resort (remember to backup your PIM info!), but I doubt this will do you any good. However, it doesn't cost you anything, and is therefore worth a try.
See if your service carrier offers insurance on your phone. If they do, sign up, and turn it in a week later for replacement. Just remember to wipe out your personal data and remove any HardSPL/Unlocks you might have done.
If insurance fraud is distasteful to you, hit eBay. You can usually score a decent condition Wizard for around $120 USD.
I haven't really tried dessication, but I think its gone beyond that. Batteris I have 3 and none of them worked. Is it easy to open the phone and try and "air" it? Will that help. Unfortunately carriers in this country don't have insurance plans. So that leaves out that last option. And if I have to buy another phone then why... the same one... ;-) Thanks anyways..
Well, I was in the process of putting my phone back to stock so I could get the camera replacement (purple haze problem) done while the warranty was in place... except somehow the eMMC screwed up while going back to stock. The bootloader still runs, so HTC can at least see that I unlocked the phone before it screwed up... and likely voided my warranty.
I talked with HTC in HK (where I bought it; I'm in GZ now), figuring I'd be on the hook for the memory fix but also the camera now, too.
In fact, they were pretty cool about it - they said if they could fix the memory and get it back to stock without replacing the motherboard, they'd cover it under the warranty. Even if the motherboard had to be replaced, they'd charge me for that, but then still cover the camera replacement under the warranty!
Have to say, that wasn't the response I was expecting. On top of that, they accepted my phone in the GZ location and sent it back to HK, for free.
The phone's still in processing now, so it's not final yet, but so far I'm pretty impressed with HTC service...
(update: after a number of returns, detailed below, I've thrown my hands up in frustration and moved on to another phone.)
tobin_o said:
Well, I was in the process of putting my phone back to stock so I could get the camera replacement (purple haze problem) done while the warranty was in place... except somehow the eMMC screwed up while going back to stock. The bootloader still runs, so HTC can at least see that I unlocked the phone before it screwed up... and likely voided my warranty.
I talked with HTC in HK (where I bought it; I'm in GZ now), figuring I'd be on the hook for the memory fix but also the camera now, too.
In fact, they were pretty cool about it - they said if they could fix the memory and get it back to stock without replacing the motherboard, they'd cover it under the warranty. Even if the motherboard had to be replaced, they'd charge me for that, but then still cover the camera replacement under the warranty!
Have to say, that wasn't the response I was expecting. On top of that, they accepted my phone in the GZ location and sent it back to HK, for free.
The phone's still in processing now, so it's not final yet, but so far I'm pretty impressed with HTC service...
Click to expand...
Click to collapse
Here is my exprience:
http://forum.xda-developers.com/showthread.php?p=52438047
so all in all, i dont have anything bad to say about em. heck they even changed the covers .D
HTC is a company from Taiwan. I have to say, they don't treat us like this over here.
Repair Story from Pakistan
I just got back my phone with camera purple haze fixed. They replaced the camera in my HTC One.
I gave them my phone yesterday and to my surprise holding my phone in perfect condition right now within 24 hours.
Amazed at their extremely efficient service
tobin_o said:
Well, I was in the process of putting my phone back to stock so I could get the camera replacement (purple haze problem) done while the warranty was in place... except somehow the eMMC screwed up while going back to stock. The bootloader still runs, so HTC can at least see that I unlocked the phone before it screwed up... and likely voided my warranty.
I talked with HTC in HK (where I bought it; I'm in GZ now), figuring I'd be on the hook for the memory fix but also the camera now, too.
In fact, they were pretty cool about it - they said if they could fix the memory and get it back to stock without replacing the motherboard, they'd cover it under the warranty. Even if the motherboard had to be replaced, they'd charge me for that, but then still cover the camera replacement under the warranty!
Have to say, that wasn't the response I was expecting. On top of that, they accepted my phone in the GZ location and sent it back to HK, for free.
The phone's still in processing now, so it's not final yet, but so far I'm pretty impressed with HTC service...
Click to expand...
Click to collapse
how long gonna take to repair it? i'm planning to replace the camera, on my vacation in HK.
Well, OK, time for an update to my original story:
So I got the phone back from HTC:
- Camera replaced, purple haze gone. Yay!
- eMMC (entire mainboard) fixed at a cost of approx. USD$213; oh well, my fault.
- Surprise - back casing replaced for free, without prompt from my side. Reason given was "Beats logo print quality poor" (ironically, the Beats logo on the new casing is wiping off even faster than before)
Anyway, so I had the phone back in my hands, and was initially pretty happy. Signal reception seemed a bit... off... but I figured it was maybe down to being in poor reception spot in China, or needing a factory reset, or even that I should get a new SIM card after more than 2 years.
Less than a day later, I realized there was something seriously wrong. 3G was seriously unstable in most places where it used to be strong, and even phone calls would drop out abruptly. Locking the phone down to 2G seemed to help a lot, but maybe not quite perfect, either. Regardless, staying on 2G is no good. Here's the unfortunate part: I was so determined to believe within the first evening that even *if* anything was wrong, that it couldn't possibly be the phone. By the time I realized it was the phone, I had already unlocked it, in order to root it. Why? Because I'm in China, and since the Tiananmen Square anniversary, anything related to Google is totally blocked, including Google Play, Mail, Contacts, Mail, Calendar, Translate, etc. which means SSH or VPN is a must, which means unlocking->rooting.
So I get it back to HTC in HK, and explain very kindly that while I appreciate the camera being fixed, that I think they've given me a borked 3G radio. I explain that it's unlocked, only because of the situation in China, and they're very understanding about this, as apparently they've heard this from many other customers, too.
I get the phone back later, and same issue. They state that they just replaced the "upper board" which apparently handles the radio. Worst thing is that they don't even know if they've fixed it or not, because I realize the 3G radio problem in HK is far less severe, and therefore far less obvious, although definitely still apparent throughout a day of usage. Even for myself, I didn't realize the problem was still there until after the service center was closed. This leads me to believe that it might be the antenna embedded within the back casing (which they replaced in the original repair because of the bloody Beats logo... which I didn't even ask for...), because of the far better 3G coverage in HK compared to anywhere in mainland China.
I get back in touch with HTC HK, and explain the situation. They try to be understanding, but they're unsure about what to do about this. I tell them I think it's the back casing. They seem open to that idea, but then go on to explain to me that their lenience with the unlocked status of the phone only extends to repairs that don't involve mainboard replacement. If it were to come down to that, they'd want to charge me another ~USD$213.
It gets better: I had been using an old Sony Xperia Play during the time that my HTC was out of my hands, and was using a SIM card holder in it. I stupidly placed the empty holder back into its SIM slot during the most recent HTC pickup, and when I tried to remove the SIM holder from the Sony later, it had snagged on something... probably one of the electronic contacts for the SIM card. Long story short, I got the holder out, but the SIM slot in the Xperia is busted. Yay...
Faced with my HTC One being gone again for a while, and no certainty at all about whether it would come back to me any better than before, and no longer having a backup phone, I bought a OnePlus One. Despite all the crap you read about delays with their invite system and shipping, etc... if you buy it domestically, it's delivered to your hands in less than 24hrs from clicking "Buy" on their website. Nice. Although OPO has a couple of issues, too, but that's for another post.
As for HTC... I hope they might try replacing the back casing this time (at no expense to me) and that this might resolve the situation. As troublesome as this whole service situation has been since the purple haze camera started it, I still love the phone, and think it's definitely the best phone I've ever owned, and one of the best phones ever made. Even with the improvements made, the M8 doesn't beat it, either. I'm very anxious to see what HTC does with the M9...
Final update on what started as a "nice" service repair story at HTC in HK:
Got my HTC One back from HK repair... again. Given the lousy signal strength, the fact that they'd already tried replacing the "upper board" which apparently hosts the radio, the hotter (than normal) temperature and lousy battery life, I figured the issue was probably with the antenna in the back casing (which they needlessly replaced the first time because the 'Beats' logo was wearing off), and told them so in a very polite and patiently-phrased letter I attached, concluding that this might easily be fixed with a replacement of the back casing - no big deal right? Since they replaced it the first time only because of the 'Beats' logo.
So, yeah, I finally get it back... and what's the result? They interpreted my letter as meaning the bad battery life must be the result of a bad battery, and replaced it. That was it. So my radio still sucks, the battery is slightly better, but still not as good as it was originally, the overall casing came back totally filthy, which took a good deal of cleaning... and the best part? Now my speakers, which previously worked perfectly, are constantly cutting out during playback of any song. Yay. Another problem that wasn't there before.
Basically, it seems can't seem to do a full and proper testing and evaluation of a returned phone, not even when I'm continuously pointing them in the right direction. Furthermore, they keep returning my phone with new problems that never existed in the first place. The former is greatly frustrating, but the latter really burns me.
To HTC (if you happen across this): you guys have great, world-class designers in your company, such that your products are beautiful and hit almost all the right keys for me... BUT... you have SERIOUS issues, both in your factory (my original phone had weirdly mismatching casing and the purple-haze camera) and even more in your after-sales repair. Your next phone (M9) is going to have to be out-of-this-world for me to even consider going down this road with you again. My OnePlus certainly isn't perfect, but it's awfully close, at less than half the price that I paid for my M7. Please get your act together... soon.
Hello all
I had a chance to buy 15 units of G3, all broken or faulty. The purchase was made via an Swiss operator who was about to recycle the devices, but instead of recycling I bought them via some program for that. They dont pay for recycling, I get the devices extremely cheap, no one pays any tax (Switzerland stuff and their laws)
First of all I want to say - LG made a phenomenal job of envisioning a device - G3 was superb compared to all the phones released in that time period (S5, OPO1, Z2/Z3, etc) with it's bleeding edge technology and phenomenal design (which I am sure inspired others to go bezel-less and edgy and so on). 2K screen, great chipset, infrared focus and insane camera quality, etc.
Only thing they made bad was actual hardware assembly: I have never seen such bad work in modern electronics judging just by the amount of extra-flux you can see on the motherboards, looks extremely sloppy. That kind of assembly eventually led to 1000 problems, which I am sure all of us G3 owners experienced past the 24 month warranty period. Some would go so far to say that this stuff with G3 could be considered Planned obsolescence with all the problems appearing just around the 24 months clock, and with the MM update (taking into account that LG held the Nexus flag at that moment and they went over their heads thinking they are going to surpass Samsung, just like Samsung did to HTC)
My 15 units were:
- 6 units BSOD
- 5 units screen flicker
- 2 units "wifi turning on"
- 2 units sim card removed and restart/No sim card/invalid card
Note: I am not electrician and I dont understand how to read schematics, all of my info came from people that I figured best know how to repair mobile phone stuff (and also speak THE WORST english)
G3 motherboard layout for future reference:
http://i.imgsafe.org/1b64bf1021.jpg
1. BSOD -
The problem is with bad BGA solder of MMC chip. Not the actual chip (very rare occurrence). In short: BGA Solder is type of assembly that uses little balls of solder instead of pins, to hold the chip in place. There are more than 60+ balls on the MMC chip so no homemade replacement is possible (there is actually a turkish video which is NOT the way to do it as the guy doesnt add new balls, just strips old ones away)
permanent solution: give it into a repair shop to replace or do a proper reball of the Sandisk memory chip
semi-permanent solution (sometimes works 100%): give the chip a heat of 120-150 celsius (no american units, sorry) for 2 minutes (using a high powered hair dryer of at least 2000W, or a proper heat-gun) with slight push (I used wooden objects so that Metalic ones wouldnt damage the chip) > this repaired total of 5 BSOD phones, just one went dead completely after several tries. ALL of my 5 units never went back to BSOD. Please, DO NOT use ovens or anything like that, If you dont have a god-damn hair dryer give it to a technician and ask him to blow it for a minute or so. Ovens WILL burn other parts of the board, and knowing how shi*ty the whole assembly is, baking the board will just detach other chips. If you apply pressure to the chip, use something wooden like a chopstick or a pencil (dont use bamboo, it will release oils, use dry wood)
2. screen flicker -
The problem IS NOT a graphic chip (analogix), the problem is NOT CPU, as many have speculated in the past and the people who putt thermal paste over a CPU need serious education on the topic. Thermal paste is in no way a magical substance that lowers temperature when applied - it's purpose is to fill the gaps between a heating body (CPU) and heat dispenser (cooling unit, cooler, aluminum grill, etc), so thermal paste is a gap filler, not a cooling magical stuff. With that out of the picture, the problem of the screen flicker is a completely separate integrated circuit which goes haywire due to some magnetic stuff:
PERMANENT SOLUTION (homemade doable):
Now first, go back to motherboard image, and on the front side of the board find Gyro Sensor chip - just above that chip, there is a grid of 5x5 pin-like circuits.
http://i.imgsafe.org/1ba7e9ccc9.jpg
Now that you have located them, that is your LCD screen flicker solution: I didnt quite understand what is really going on there, but you need to apply heat (just like in the BSOD solution, same time same temperature), and use metallic object to "clean" the pins. He explained to me that the screen flicker is due to some magnetic residue that builds up in that circuits, and a clean metal will remove it. (how that is even possible I dont know but the solution works) Long story short - I used a really fine metallic brush (Dremel set) and once I heated it up, just strolled with brush over those pin-heads. According to the guy, the metallic object needed for cleaning should be non-magnetic. If you dont remove the screen flicker at first, use a really fine object to give all the pins a push (once heated), I used broken needle (regular needle is too sharp) or smallest Phillips screwdriver in my set. IMPORTANT: when doing this, there is a ton of chips nearby so it's smart to protect rest of the board with Alu-foil
total of my 5 screen flicker units NEVER went back to screen flicker issue. Special note: 2 of my units after completely removed screen flicker issue, immediately went to "no sim card" issue and I dont know how that is connected, but there is also a method for sim-card issue repair further down the topic
3. Wifi turning on/wifi grayed out/wifi scanning
The problem over here is also not the problem of the actual Wifi chip (motherboard image back side, red mark). The problem is the power controller located on the front side (red mark). It is also a BGA solder issue so it's repairable
permanent solution: reball or replace chip in proper mobile service shop
semi-permanent solluton: Use the same method of repairing as for the BSOD problem, but with applying heat + pressure onto the power controller chip. Be careful as there are tons of IC's nearby. Homemade solution worked partially for me - one unit (out of 2) is completely repaired, other unit actually went dead (I believe I gave it too much pressure, that was my first repair )
4. Sim card removed and restart/No sim card/invalid card -
The problem with this is also not a problem of RF chip (backside green) or the 2g/3g/4g chip (backside light red), and it is NOT a problem of Sim card slot: it's one lousy mo-fo chip that's not even listed in the hardware parts image, and it's only noted in the actual schematics (I believe it's a chip for regulating power onto the sim card slot and transferring data further)
this one (red arrow pointing onto it):
http://i.imgsafe.org/1c52a74d87.jpg
permanent solution: replace, reball or reflow in service shops (when I say replace, it makes sense as new chips out of the box have BGA balls already on it, just need to place it and heat it up)
semi-permanent solution: same method goes like BSOD and wifi problems - apply heat and moderate pressure with wooden object. The problem with this one is that it will reappear as a problem. I had one unit in the service shop where the repair guy gave it some insane heat for 5-6 seconds while protecting rest of the board, and it was permanent, no sim problem any more. In homemade variant, the problem seems almost unable to fix, but you need to be persistent. sometimes it takes 4-5 tries for the phone (placing the board, and removing it again and so on is a pain in the arse) to recognize sim and after that you are good for a month or so, once it "catches" I gave it a try with a higher temperature / less time (200c, 30 seconds) and it shows better results, I dont need to try the board for 3-4-5 times until it recognizes the SIM, it's imediately good to go, but even with that it reappears after a month, 2 months, but sometimes after only couple of days
one unit is permanent (reflow in service shop), others (repaired screen flickers that went "no sim card" ) bug me still with reappearing SIM problem.
There you go, I wanted to share this with everyone so you people wouldnt lose your mind with paper tricks, ovens, and such, as G3 is still really powerful device and it would be bad for all the units to end up in a bin. I am using 3/32 version with fulmics and it works as any new 600 usd device, if G3 still works without a flaw there is really no need to go newer, not yet.
END NOTE: every attempt at trying this is on your own responsibility, I am not responsible if you fry your board, break your device, or tear your flex cables and such.
END NOTE2: in my experience, dont attempt to try the newly repaired board with battery less than 40%, I wont get into it right now but all Li-ion/Li-poly devices work at their best when there is a good charge
good luck with potential experiments fellow XDA people
Thank you for this thread, I'm sure it will help a lot of more technologically-minded users on XDA. As for me, I did have a sim card removed problem but thankfully it appeared within my warranty period so I took it to them and they replaced the entire PCB (MoBo).
Sent from my LG-D855 using Tapatalk
Thanks for the info. After troubleshooting a few BSOD & flicker phones I came to pretty much the same conclusion as well. Although some temporary G3 fixes work for a short time, nothing is actually "repaired" until you replace the BGA ball solder; so unless you have the proper equipment to work on BGA components you're kind of screwed.
LG has a quality problem with their manufacturing techniques of their motherboards; the latest issue was bootloop issues on the later G-series phones that were also tied to poor soldering(which they are now being sued over). It's a shame too, because I like LG's devices...just hard to trust them completely at this point. But I guess that's the philosophy of these huge OEM's these days: skimp on quality to meet sales demands. Samsung is a good example of this as well with their exploding note 7's and red tinted S8 displays(that they refuse to admit is a hardware problem - "lets just make the red tint slider longer!" just like their software "fix" for the Note 7 battery that didn't work and eventually required a massive recall). Buying a phone is turning into a crap shoot these days
@startswithPendswithOOH - you are right about everything, they really have crappy assembly. But for me, almost all of BSOD and screen flicker issues are repairable in the home conditions using methods from original post. Luckily I do have a professional heat gun so I can even experiment on the temperature and time of heating and my repair rate is great (fortunately I had 15 devices to experiment on). I actually made some money of it, sold almost all of them that were repaired and not a single buyer called me back with a problem. My girlfriend and my nephew are going with my repaired G3s and they use it constantly. Especially my girl, she abuses it to the point that I get annoyed and remove all her running apps (sums up to 20+ ) cause she uses just 10 of some social apps and such, her phone should overheat and problems should reappear if it were not for a good repair. She usesd BSOD repaired device and didnt have one for 4 months now
Update on possible solution for the sim card problem
I did a little tempering with a piece of dry wood, and I made it EXACTLY into a shape of the square of the SIM card chip (described in the original post). I used a stick and shaped it with dremel sandpapering tool, to be exactly the size of the square. Then I putt a cloth underneath the board (so when applying pressure from the upper side you wont break some other stuff opposite) and made a pressure with wooden stick, approximately the force needed to pierce the styrofoam with index finger. That's about the strongest pressure you can give it, and not damage the board. heated it up with 200c with a heat gun for a minute
6th day without problems, without sim card failure, should be noted that I am abusing that board via data and calls going all the time and it seems the problem is solved, will report again in 3 weeks (full month)
Hey!
Do you have any fix for rear camera problem?
Sp3cTeR said:
Hey!
Do you have any fix for rear camera problem?
Click to expand...
Click to collapse
well I do - only problem with rear camera should be - replace rear camera :cyclops:
Oooooh, I stand corrected after a bit of google-ing. I see that it IS an actual problem with no solution, camera sometimes works, sometimes it doesnt. Well, it could be yet another chip on the board, actually the way people described the problem on Androidcentral forums, seems it's 100% a chip issue. If it was HW issue it would work or not work, this partial usability points to another motherboard problem
anyways you should check all the stuff that should NOT be motherboard issue
1. camera module gone bad - replacement should be extremely cheap, check out service shops for spare or Aliexpress for mega-cheap spare, if you know how to open ask someone with G3 to replace cam modules for couple of days to check
2. camera flex cable - in the process of fiddling with the phone and removing motherboard several times, one can easily tear the flex cable of the cam, examine it
3. motherboard connector for camera - for this I really dont see even a remote chance of happening, but im still mentioning it
4. software problem - eliminate the possibility of tempering with root access with files, by doing a factory reset
Well, just bought lg g3 for $60. Pretty clean. The problem was that owner couldn't get it out of Firwmare Upgrade screen, had no experience nor time / patience. So I bought it. Later that night, managed to flash v10e from lgg3root(dot)com tutorial for it. From the first try.
But using the phone got laggier and laggier, and if I were to do multiple tasks like switching between apps and stuff like this, the phone would freeze and then in about 15-20 seconds it would give me the LG logo and pretty much stay there, eventually giving the "kernel crashed" screen (BSOD ?? )
Please, what do u think the problem is?
Managed eventually get v20h / v30b on it but was pretty much unusable, and most of the time, when trying to get it connect with the ADB and run "reboot recovery" and do factory wipe, it would just crash again. Now I'm stuggling to get v10e again on it ... but it's really a pain. I've got about a week worth of hours into making it work. Please, read my thread to get some more 'clues' https://forum.xda-developers.com/lg-g3/help/help-horrible-experience-d855-t3600094
AKAndrew41 said:
Well, just bought lg g3 for $60. Pretty clean. The problem was that owner couldn't get it out of Firwmare Upgrade screen, had no experience nor time / patience. So I bought it. Later that night, managed to flash v10e from lgg3root(dot)com tutorial for it. From the first try.
But using the phone got laggier and laggier, and if I were to do multiple tasks like switching between apps and stuff like this, the phone would freeze and then in about 15-20 seconds it would give me the LG logo and pretty much stay there, eventually giving the "kernel crashed" screen (BSOD ?? )
Please, what do u think the problem is?
Managed eventually get v20h / v30b on it but was pretty much unusable, and most of the time, when trying to get it connect with the ADB and run "reboot recovery" and do factory wipe, it would just crash again. Now I'm stuggling to get v10e again on it ... but it's really a pain. I've got about a week worth of hours into making it work. Please, read my thread to get some more 'clues' https://forum.xda-developers.com/lg-g3/help/help-horrible-experience-d855-t3600094
Click to expand...
Click to collapse
Hi, the links arr down?
i fixed my screen flickering issue thank you so much i will report if it comes back it's no problem for me but the fix you described works that means those circuits have something to do with this,i would like to know if it's possible to clean those circuits with alcohol it's maybe stupid but idk you tell me other than that thank you
edit:it's back sorry if got anyone excited,i'm back to putting the pressure on the SOC
Thank bro u saved my device!
Updated : flickering to fading comes again after less than an hour with less usage , just charging it, so i tried heated up and put pressure again but this time on the processor.
Igoritza said:
4. Sim card removed and restart/No sim card/invalid card -
The problem with this is also not a problem of RF chip (backside green) or the 2g/3g/4g chip (backside light red), and it is NOT a problem of Sim card slot: it's one lousy mo-fo chip that's not even listed in the hardware parts image, and it's only noted in the actual schematics (I believe it's a chip for regulating power onto the sim card slot and transferring data further)
this one (red arrow pointing onto it):
http://i.imgsafe.org/1c52a74d87.jpg
Click to expand...
Click to collapse
Well done mate, but according to service manual the chip you pointing with red arrow is NFC
Im bit confused now what it have to do with the sim
As far as i think, if bsod or screen flicker comes up, theres no need to fix it because its dead, so just buy a new mobo and thats it.
startswithPendswithOOH said:
Thanks for the info. After troubleshooting a few BSOD & flicker phones I came to pretty much the same conclusion as well. Although some temporary G3 fixes work for a short time, nothing is actually "repaired" until you replace the BGA ball solder; so unless you have the proper equipment to work on BGA components you're kind of screwed.
LG has a quality problem with their manufacturing techniques of their motherboards; the latest issue was bootloop issues on the later G-series phones that were also tied to poor soldering(which they are now being sued over). It's a shame too, because I like LG's devices...just hard to trust them completely at this point. But I guess that's the philosophy of these huge OEM's these days: skimp on quality to meet sales demands. Samsung is a good example of this as well with their exploding note 7's and red tinted S8 displays(that they refuse to admit is a hardware problem - "lets just make the red tint slider longer!" just like their software "fix" for the Note 7 battery that didn't work and eventually required a massive recall). Buying a phone is turning into a crap shoot these days
Click to expand...
Click to collapse
Preach on. Lol i got a g4 im in the lawsuit over
Yeah black screen comes back when the tmperature was hot. So its time to throw away this crap g3. Hopeless .
2 years ago a yellow coffe spot appeared on the top corner of my lg3 display, so i sent back to warranty and they changed the lcd screen.
Some month after the same coffe spot appear in the same area, i brought back the phone in warranty they changed the lcd. again
Now i have the problem for the 3rd time, im not in warranty anymore.
In my opinion is not the lcd, the lcd cant burn itself in that way, i think is a glue problem and maybe i can buy a new 13$ glass on amazon and replace it.
But before to risk to broke the phone, anyone experienced that?
This is an image i found on google image, is not my G3 but that explain my situation.
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L33TaS said:
As far as i think, if bsod or screen flicker comes up, theres no need to fix it because its dead, so just buy a new mobo and thats it.
Click to expand...
Click to collapse
that's is also a temporary solution,if you're wasting money better buy another smartphone that is no an lg,go with another reliable brand
Khalid47 said:
i fixed my screen flickering issue thank you so much i will report if it comes back it's no problem for me but the fix you described works that means those circuits have something to do with this,i would like to know if it's possible to clean those circuits with alcohol it's maybe stupid but idk you tell me other than that thank you
Click to expand...
Click to collapse
how close did you hold the heat gun/ hair dryer?
Khalid47 said:
that's is also a temporary solution,if you're wasting money better buy another smartphone that is no an lg,go with another reliable brand
Click to expand...
Click to collapse
This is true. I bought a new mobo from DhGate to fix the famous "WiFi saved but not connecting issue" only to end up with the screen flickering, lines, and fade to black issue with the replacement mobo. I want to get a new phone but I'm waiting for the note 8/ pixel 2 .
unbreakabl3 said:
how close did you hold the heat gun/ hair dryer?
This is true. I bought a new mobo from DhGate to fix the famous "WiFi saved but not connecting issue" only to end up with the screen flickering, lines, and fade to black issue with the replacement mobo. I want to get a new phone but I'm waiting for the note 8/ pixel 2 .
Click to expand...
Click to collapse
i held a hairdryer for 3 mins with my hand i'm thinking the problem will comeback but i don't care i fixed it many times temporarely,as for the mobo you shouldn't have wasted your money it's really dumb people who buy it again we already know that it will die really what's the point of that,as for your future daily driver i would recommand you go with a sony i'm not working for them or anything i had a sony and my brother has one never experienced anything hardware related or software related,just talking from my experience with this brand i can't advise you something that i never tried samsung or xiaomi etc...,goodluck with your fixing
Khalid47 said:
i held a hairdryer for 3 mins with my hand i'm thinking the problem will comeback but i don't care i fixed it many times temporarely,as for the mobo you shouldn't have wasted your money it's really dumb people who buy it again we already know that it will die really what's the point of that,as for your future daily driver i would recommand you go with a sony i'm not working for them or anything i had a sony and my brother has one never experienced anything hardware related or software related,just talking from my experience with this brand i can't advise you something that i never tried samsung or xiaomi etc...,goodluck with your fixing
Click to expand...
Click to collapse
i meant how far away from the chip did you hold the hairdryer? 10cm, 20cm etc.
well I wanted to keep the phone going till the Fall lol.. and plus i didnt think that the replacement would have issues tbh. Thanks for the recommendation. I'll look into them.
Hi team. My S7 edge has been rooted plenty of times, tons of custom roms, etc etc. I have owned the phone for 23 months now. The battery is dying, home button peeled, usb dropping connection, and I just found warranty card stating that is still one month under warranty. But due to rooting havoc I inflicted to my phone, knox is deeply tripped. I am trying to find a way to break my phone so badly that it is not even possible to go to download mode so that the service centre cannot check knox status.
Any ideas? Removing cable while flashing bootloader? Undercharging the battery to kill it? Did anyone try?
extract sboot.bin from firmware and flash it with odin very quickly, when it is in middle or between flashing remove the cable immediately and hopefully your phone will die repeat this again and again also try with cm.bin too. You have to hard brick your phone don't try to damage battery or break anything physically it will void your warranty straight away.
PS: I think knox will show tripped if they did't replaced the motherboard and used another method to flash it and you have to blame them that they did it not you.:victory::victory:
It seems to be difficult to hard brick the phone. I tried many times - in Odin, I selected BL button, selected the BL archive from stock firmware, then during flashing I was disconnecting the phone. I tried it several times at several stages of flashing (once i hit the sboot.bin) but the download mode still works and displays warranty void 1. I can't kill off that download mode. I am starting to worry that it is hardcoded into some ROM module that just cannot be written and so it is running from hardware. This factory flashing through odin is doing everything with NAND memory that is read-writable but it looks that the download mode "partition" is not writable at all. Despite I break bootloader or whatever else, i just cannot destroy download mode, hence it is impossible to hard brick the phone. I was thinking of overclocking the CPU to destroy it but i think it would be too obvious.
If you are based in the EU, then Samsung needs to repair under warranty regardless whether you have rooted your phone or not.
Darkjamzi said:
If you are based in the EU, then Samsung needs to repair under warranty regardless whether you have rooted your phone or not.
Click to expand...
Click to collapse
Well, I am based in EU. Can you support your statement by any source?
Anyway I flashed stock rom and brought it to the carrier's store for repair. Let's see.
wratnik said:
Well, I am based in EU. Can you support your statement by any source?
Anyway I flashed stock rom and brought it to the carrier's store for repair. Let's see.
Click to expand...
Click to collapse
Well, it is the law...... a vendor can't just invalidate your statutory warranty, because they don't like what you did........
https://www.piana.eu/root/
https://forum.xda-developers.com/showthread.php?t=1998801
https://www.xda-developers.com/xda-external-link/rooting-cannot-legally-void-your-warranty/
If they refuse (which they probably will) take them to court. Just to be clear, you need to take whoever supplied the phone to court, as you'll have warranty with them.
wratnik said:
Hi team. My S7 edge has been rooted plenty of times, tons of custom roms, etc etc. I have owned the phone for 23 months now. The battery is dying, home button peeled, usb dropping connection, and I just found warranty card stating that is still one month under warranty. But due to rooting havoc I inflicted to my phone, knox is deeply tripped. I am trying to find a way to break my phone so badly that it is not even possible to go to download mode so that the service centre cannot check knox status.
Any ideas? Removing cable while flashing bootloader? Undercharging the battery to kill it? Did anyone try?
Click to expand...
Click to collapse
Use a USB killer. Simple.
how about give it to somebody who really could use a phone?
Put 12v ping from old pc psu on usb 5v and +data (red and green wire in cable) rail ,it will kill it,work with my old LG G4 whenn LG wont replace via rma screen with red retentions,fry it on 12v for few miliseconds do not for longer time or will be start smoking
Hello all, just an update,
they totally repaired my phone, no questions asked. Replaced the battery, entire front panel with screen, home button, and they even replaced the chassis (metal frame) so it looks like new. A pity that the back cover remained old, scratched.
Samsung rulez.
wratnik said:
Hello all, just an update,
they totally repaired my phone, no questions asked. Replaced the battery, entire front panel with screen, home button, and they even replaced the chassis (metal frame) so it looks like new. A pity that the back cover remained old, scratched.
Samsung rulez.
Click to expand...
Click to collapse
Just wondering if it's still waterproof
Aashish.007 said:
Use a USB killer. Simple.
Click to expand...
Click to collapse
At most, all he will accomplish with an USB Killer stick is to fry the contacts on the USB port if it's not securely plugged in. The S7 is immune to the USB killer stick.
Seicer said:
Just wondering if it's still waterproof
Click to expand...
Click to collapse
I confirm it's waterproof as before. Since repair, I had it with me several times in wellness tub, sauna, jacuzzi (warm water - more risk to "loosen" the adhesive), also took some slo-mo videos during water sliding and there is no sign of water / drops / mist in the phone. I am taking it to the sea in 3 weeks (for the 3rd summer in a row). The phone is holding together like new. It also suffered a few drops - no damage.
Just a note - USB charging is not working several hours after bath. It must dry completely. So bring a wireless charger if you plan to bathe with your s7 edge.
The best phone in my life. It's so durable. Although.. note 8 would be a nice upgrade
I have been using my phone for 2 years last month I thought will replace battery, in local Samsung shop battery replacement cost £60 together with the battery but I thought I will try it myself. Bought battery for £20
Few tools to open the phone, hair dryer. Tube of silicone, double sided tape.
Local shops are filled up with spare parts for s7 edge back plate motherboards etc and they're cheap in case if I damaged anything.
It took me around 2 hours to replace the battery and haven't damaged anything, was thinking will test if my phone is still waterproof. Well Samsung says originally I can put my phone underwater 0.5m deep for 30 min and it should still work.
I did extended water resistance test. Used fishing rod and there's lake just behind my house. Attached my phone and dropped it I think around 4m deep and went back home and came back in the evening around 8 hours later thinking either fish ate my phone or surely it died, pulled it back and there were few messages on the screen, someone texted me while my phone was on the bottom of the lake.
I guess I have waterproofed my phone better than Samsung
wratnik said:
Hello all, just an update,
they totally repaired my phone, no questions asked. Replaced the battery, entire front panel with screen, home button, and they even replaced the chassis (metal frame) so it looks like new. A pity that the back cover remained old, scratched.
Samsung rulez.
Click to expand...
Click to collapse
The back glass is extremely easy to repair though, I'd know since i've replaced it myself on my S7E about 5 times now. Usually a new OEM glass battery cover replacement only costs about 20 bucks.
S7 edge
Hello I'm in the same situation and i am based in the eu to do i still have to hard brick the device or just send it to samsung thanks in advance
Thijs
no need to hard brick, just send it as is.
wratnik said:
no need to hard brick, just send it as is.
Click to expand...
Click to collapse
Thanks for replying so fast, I'll post an update about the "possible" repair of my device!
Hello, did they change your motherboard and knox is 0 now or you received it with same motherboard with knox 1 ?
Microwave? Cook some chips..
G900V KLTE - BLACK SCREEN OF DEATH PHONE DIES UNEXPECTEDLY!!! (new battery)
Still having a problem with black screen of death. I had made a post about it earlier in the week but no response. I have kept everything basically the same, except I use Magisk 21.4-23 (newest), and TWRP 3.5.2 upgraded from 3.5.0 like maybe a couple months ago. Ever since last month have had the problem. I have brand new batteries installed as I thought maybe that was what was causing it (previous experience). Screen goes black, phone vibrates a couple times, then I have to battery pull to try to power on. Sometimes it works, other times it doesnt. In other instances have had screen freeze and get all static and soft reboot itself. I can see the white captive touch buttons working and sound but screen does not wake. Battery pulls for X amount of time does not solve the screen issue. I have flashed correct firmware several times in ODIN. I had this black screen issue and phone died while at the store earlier today. I need a phone thats dependable! This has been happening on any custom roms I use 14.1-18.1. I'm so frustrated I nearly broke my phone in half last night!
Any ideas what's causing the screen issue?
I had a very similar problem on my Galaxy S7. It used to suddenly shutdown, sometimes reboots by itself. Sometimes it won't just turn on at all except after some time.
Sometimes, it vibrates, shows the bootsplash for a few milliseconds, then shutdown.
What a coincidence that when I upgraded to TWRP 3.5, it was when the problem started to hit.
I was using crDroid based on R, It wasn't stable, so I thought the problem was the ROM/Kernel/Recovery. I tried an already known stable ROM.
The same thing happened, then I was semi sure that it is on hardware problem. I teared the device apart. The problem was .. Water Damage.
I thought the phone was water proof/resistant. What a disappointment. Anyway I've cleaned every molecules of water from the phone. It worked fine afterwards.
But I lost the battery percentage diode or something, so the phone can't read battery percentage/voltage.
It took me 3 months to know all these things. I hope it be of help to you.
Mohamedkam000 said:
I had a very similar problem on my Galaxy S7. It used to suddenly shutdown, sometimes reboots by itself. Sometimes it won't just turn on at all except after some time.
Sometimes, it vibrates, shows the bootsplash for a few milliseconds, then shutdown.
What a coincidence that when I upgraded to TWRP 3.5, it was when the problem started to hit.
I was using crDroid based on R, It wasn't stable, so I thought the problem was the ROM/Kernel/Recovery. I tried an already known stable ROM.
The same thing happened, then I was semi sure that it is on hardware problem. I teared the device apart. The problem was .. Water Damage.
I thought the phone was water proof/resistant. What a disappointment. Anyway I've cleaned every molecules of water from the phone. It worked fine afterwards.
But I lost the battery percentage diode or something, so the phone can't read battery percentage/voltage.
It took me 3 months to know all these things. I hope it be of help to you.
Click to expand...
Click to collapse
So I did some more testing tonight. I first downgraded TWRP to 3.5.0 from 3.5.2 had same issues. Now i'm on 3.4.0, and I pounded on the display upside down while in recovery. It did the reboot thing and screen went black. Phone would not power up, even after removing and re-installing batteries. It has taken several tries with and without plugging it in. Finally it has booted up and I went into recovery to re-flash yet another rom. The phone would do the black screen thing at random and have issues if placed down too hard.
Obviously it's not software related it's hardware.
So my question is the display bad or the motherboard?
Should I just look into getting a 5G brand new phone or try to get it repaired somewhere?
I've been considering switching to T-mobile once I get a 5G device.
Droid9684 said:
So I did some more testing tonight. I first downgraded TWRP to 3.5.0 from 3.5.2 had same issues. Now i'm on 3.4.0, and I pounded on the display upside down while in recovery. It did the reboot thing and screen went black. Phone would not power up, even after removing and re-installing batteries. It has taken several tries with and without plugging it in. Finally it has booted up and I went into recovery to re-flash yet another rom. The phone would do the black screen thing at random and have issues if placed down too hard.
Obviously it's not software related it's hardware.
So my question is the display bad or the motherboard?
Should I just look into getting a 5G brand new phone or try to get it repaired somewhere?
I've been considering switching to T-mobile once I get a 5G device.
Click to expand...
Click to collapse
That's obviously water damage. I used to get all that on my old S7. It is fixable, you need to untie your motherboard, heat it till it literally dries up. Then it won't repeat that BSOD thing.
However, if you tried to boot the device while there's still some water, it will cause more damage to the components, diodes.
Galaxy S5 is for about 40$ in my country. You should consider buying another, more recent phone. Midrange 5G phones are for about 250$ - 400$ here. Though I still miss 2014 phones.
Mohamedkam000 said:
That's obviously water damage. I used to get all that on my old S7. It is fixable, you need to untie your motherboard, heat it till it literally dries up. Then it won't repeat that BSOD thing.
However, if you tried to boot the device while there's still some water, it will cause more damage to the components, diodes.
Galaxy S5 is for about 40$ in my country. You should consider buying another, more recent phone. Midrange 5G phones are for about 250$ - 400$ here. Though I still miss 2014 phones.
Click to expand...
Click to collapse
I have no idea how to untie a motherboard or take apart my phone. I'm sure I'd end up doing more damage to it knowing my luck. I have no such tools either to take my phone apart. I've seen S5 for sale here in US for $50 or less and motherboards for a little less. Right now it's hard to afford a brand new 5G phone.
I'm not sure how my phone got water damage? I've always been careful with it over the years never submerged or anything.
Droid9684 said:
I have no idea how to untie a motherboard or take apart my phone. I'm sure I'd end up doing more damage to it knowing my luck. I have no such tools either to take my phone apart. I've seen S5 for sale here in US for $50 or less and motherboards for a little less. Right now it's hard to afford a brand new 5G phone.
I'm not sure how my phone got water damage? I've always been careful with it over the years never submerged or anything.
Click to expand...
Click to collapse
Water Damage usually shows a few days up to a few weeks after it's interaction with water. I thought S7 was water resistant.
A tiny drop of water can cause this issue.
Don't know why people rush towards 5G phones, knowing it ain't stable just yet. I've heard USA is shutting down 2G/3G, so the least you should own is a Dual-VoLTE device. I got A70 for ~162$.
Mohamedkam000 said:
Water Damage usually shows a few days up to a few weeks after it's interaction with water. I thought S7 was water resistant.
A tiny drop of water can cause this issue.
Don't know why people rush towards 5G phones, knowing it ain't stable just yet. I've heard USA is shutting down 2G/3G, so the least you should own is a Dual-VoLTE device. I got A70 for ~162$.
Click to expand...
Click to collapse
Yes 3G has been getting shutdown. 5G is still building out the network. If I were to stay with 4G I might as well stick with S5 since I know it and all my data is saved with titanium backup.
I have read to soak my phone in isopropyl alcohol for up to a couple hours. https://www.orduh.com/water-damaged-samsung-galaxy-s5/
It might be cheaper for me to just find another S5 right now. Can I restore backed up titanium data to a different phone?
I got this phone back in 2015 off eBay after my developer edition SD card slot was broken. Near the front camera it looked like some sort of damage may have occurred after I had received the phone. But I didn't have any of these problems other than a few years ago the BSOD once in awhile which went away.
Currently the BSOD issues have been since earlier this month/last month. As long as I don't put my phone down on table or hit it too hard it has no issue. If it's placed on table as gentle as a feather it's fine. But I have to do lot of battery pulls when I'm out doing errands walking with it.
And screen takes forever to wake when receiving phone calls sometimes I miss them. It's very delayed.
Droid9684 said:
Yes 3G has been getting shutdown. 5G is still building out the network. If I were to stay with 4G I might as well stick with S5 since I know it and all my data is saved with titanium backup.
I have read to soak my phone in isopropyl alcohol for up to a couple hours. https://www.orduh.com/water-damaged-samsung-galaxy-s5/
It might be cheaper for me to just find another S5 right now. Can I restore backed up titanium data to a different phone?
I got this phone back in 2015 off eBay after my developer edition SD card slot was broken. Near the front camera it looked like some sort of damage may have occurred after I had received the phone. But I didn't have any of these problems other than a few years ago the BSOD once in awhile which went away.
Currently the BSOD issues have been since earlier this month/last month. As long as I don't put my phone down on table or hit it too hard it has no issue. If it's placed on table as gentle as a feather it's fine. But I have to do lot of battery pulls when I'm out doing errands walking with it.
Click to expand...
Click to collapse
So I looked at the water damage indicator sensor. My phone's patch is still white with a reddish x pattern, there is no water damage. If there was damage it would be all red.
There's no other explanation for BSOD the way you described except for damaged components, unless the phone was water damaged, it must have received a very hard hit.
That hit will definitely affect the screen, if the phone was refurbished, you won't notice it, cause the motherboard is connected to a good working device.
If you think it is software, there's bootloader, baseband, kernel, and system that you can change to confirm your thoughts.
It's very easy to untie S5, only needs one tool.
Mohamedkam000 said:
There's no other explanation for BSOD the way you described except for damaged components, unless the phone was water damaged, it must have received a very hard hit.
That hit will definitely affect the screen, if the phone was refurbished, you won't notice it, cause the motherboard is connected to a good working device.
If you think it is software, there's bootloader, baseband, kernel, and system that you can change to confirm your thoughts.
It's very easy to untie S5, only needs one tool.
Click to expand...
Click to collapse
I know it's not software the bootloader, kernels, baseband have all been same and worked fine up until this month or so. I smacked the front of it while in recovery to see if it would have the issue. Sure enough it is hardware related! I just messaged a local repair shop on how much a fix would cost. I dont feel comfortable taking apart my phone and I dont have tools or anything.