hello everyone, I recently received a galaxy A3 A300FU that had problems of bootloop, my cousin send it to me so I can help him with the problem, since he was not going to do a factory reset (because he has a lot of pictures of his now deceased wife may her soul rest in peace) I was going to try a dirty firmware install or a 3rd party program like "fonedog or thenorshare" but when the phone got to me the phone had no sign of life, nothing, no booting no splash screen nothing the phone is completely dead, I called him to know if the phone had a damage screen before, he swears not, so the phone has to be damaged in shipping or it may be another problem that I'm not aware of, I tested the motherboard and the battery with a multimeter I found the voltage is good and all the connections were good, everything seemed to be alright.
So my question is: -is there any way to know if the screen is still working with it not turning on ?
-if not, how can I recover the data knowing that the screen is black and the phone shows no sign of life besides
the tests I did with the multimeter that were all good ?
note: for now I have no way of buying spare parts to test with.
Thank you for reading, I hope you doing great stay safe
sorry for the spelling English isn't my first language
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Hi XDA,
I've been playing around with my phone, all was fine until I downloaded SGS4Flasher from the play store and flashed something onto my phone. Since then, It's been mayhem to get back right again.
I installed a new PIT file, this seemed to fix the problem I had. I then installed OTA updates, which has changed my device Baseband version to i9505xxuemj7 from i9505xxubmga.
I used to be running android 4.2.2, but from simply installing Cyanogenmod through recovery, my phone could run Android 4.3.
Now my phone is running as normal again - Except every so often it'll crash and then get stuck in the bootloop, so I have to remove my battery and give it a few minutes before re-inserting and powering on my device for it to work properly. This means I cannot play games, tether my internet for too long etc. It's rather frustrating having such a nice phone yet not being able to use it.
Due to being new at this, I've kinda put up with the problem for a little while now - But its getting ridiculous now.
Can someone help me, I'm not good with all the terms of PDA, CSC etc - I'd like to be explain to taught what to do in plain black and white please, I know this can be daunting and frustrating, but so is this problem of mine that I've caused.
If you need any more information than what I have provided please just ask.
I'm from the UK and I'm using a pay monthly sim from Vodafone.
I am using the i9505 device with qualcomm processor - Jfltexx
If anything, I don't care about android 4.2.2 or android 4.3, they both seemed decent enough to me, but ROM wise, I absolutely loved Cyanogenmod. But anything that'll make my phone work without crashing, please help.
Do I need to find a new Kernel? PIT? I'm not sure what to call it? CSC? PDA?
All I'm used to is booting my phone into recovery mode, choosing install, and then choosing Cyanogenmod from my SD_CARD.
I've used ODIN before to do something with files, following tutorials from the internet - I think this was ROOTING Clockword Recovery Mod, or TeamWIN RP or something? I believe these are the files that make the RECOVERY mode on my phone that allows me to install Cyanogenmod through my SD Card.
Please simplify this as much as possible for me, even if it comes across as insulting ... an A B C guide would be appreciated highly.
Thanks,
So you do have this issues with Cyanogenmod and with the stock rom? I've had similair issues when my battery was malfunctioning. Can you check with a different battery?
Lennyz1988 said:
So you do have this issues with Cyanogenmod and with the stock rom? I've had similair issues when my battery was malfunctioning. Can you check with a different battery?
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The phone is virtually brand new - I'll get another battery yes, but It wont be the exact same one that comes with the device - It'll probably be a cheap Chinese make from Ebay for about £5.
The battery has been acting strange, and I'm not sure if its just me or not, but the battery feels sorta swelled as opposed to being completely flat.
I'd have thought It'd be an issue with the software/firmware seeing as that was what I had been messing around with.
I never had the problem with cyanogenmod, but cyanogenmod was before I started playing with things I shouldn't have.
Yes, its a common problem with the S4 that the battery becomes damaged. I think that if you replace your battery your phone will be working again. Because a swollen battery is a damaged one.
You could also claim warranty for your battery. Samsung already stated that some S4 were shipped with faulty baterys and that they will replace them for free.
Lennyz1988 said:
Yes, its a common problem with the S4 that the battery becomes damaged. I think that if you replace your battery your phone will be working again. Because a swollen battery is a damaged one.
You could also claim warranty for your battery. Samsung already stated that some S4 were shipped with faulty baterys and that they will replace them for free.
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Even though I've now voided my knox warranty?
Yes even then. I think you will only have to send the battery in to Samsung
And besides, I see you live in the UK. Under European Law the shop has to replace the battery for you and rooting etc does never void your rights.
Hi guys!
So while using my phone halfway, it suddenly powered off and died. At first I thought it was something small and tried to power it on again, but unfortunately it seems to be a much bigger problem. I am unable to do anything with the phone at all. It's become a literal brick.
I have not done any rooting nor have I dropped the phone into the water. I dropped my phone a couple of times, but it was with a proper phone cover.
When I tried to charge my phone, the charging light did not come on. I have tried the battery in an external charging kit and it works fine, therefore I do not believe that it is a battery problem.
The lucky thing is that my phone is still under warranty. However, I was told that the SOP for servicing the phone is to remove all personal data during the recovery process.
Unfortunately, I didn't back up the files in my phone because I didn't see any signs that the phone was gonna die on me, so I was wondering if there was any other way to save my data.
I read online that it may be worth trying to use a USB jig to try to force the phone into download mode. Is this possible? Does anyone know where I may be able to purchase one?
Unfortunately, I do not know which specific model my carrier sells, but it's a Qualcomm 2.7 KHz 4G+ note 4. Can't remember the exact firmware it was running on, but it should be the latest stock firmware.
Would greatly appreciate any advice. Thanks!
Is there anyone here who has any advice for me?
royaloyalz said:
Is there anyone here who has any advice for me?
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jig is basically a 300K ohm resistor across pins 4 and 5, so searching for brand names/judging by marketing descriptions won't help. It can only fix soft bricks for you, specifically it lets you enter download mode where you can use odin to flash stuff you want. It wont help you in any other way.
Now that we are clear, the cheapest ones I could find are these:
http://www.amazon.com/SainSonic-Dongle-Samsung-Captivate-Vibrant/dp/B0053H73JQ
http://www.amazon.com/Download-adapter-Samsung-Galaxy-Unbrick/dp/B008THL0V4
Buy whichever you like
And if its a hard brick, off to the service center you go!
PS: i have no idea about any way to backup from download mode, maybe someone else can help you on that part.
If you are able to dirty flash a rom and get it booting then you can backup all you want. Hope that works for you.
Thanks for the advice!
Unfortunately because I wasn't able to power up the device I had to send it into the service center. They replaced the motherboard and the charging point for me and I got back my phone 4 hours later.
Lesson learnt, always backup your data every day.
So last week my N910F (rooted) ran down to 20% battery and so i put it on charge, thought nothing of it, A couple hours later the phone was dead, extremely hot to touch and just a blank screen with no charging lights, So i unplugged the charger removed the battery and let it cool for about 10 mins, when i put it back together it refused to turn on, tried both recovery and download modes but still nothing tried different chargers and still no lights, nothing. took it back to my local O2 shop to see if i could send it off for repair.
Got home this evening and O2 had kindly returned my phone to my home address, with a letter saying the following -
Thank you for sending us your phone to be fixed.
One of our engineers, has tested your phone and found that unauthorised rework has been carried out on the phone. Unfortunately, this prevents us from repairing it and we are, therefore returning your phone un-repaired.
well after reading this my heart sank and i was guessing i would have to make a insurance claim and hope my insurance would somehow replace it.
I then noticed on inspection of the phone, there was for some reason a new charging cable included with the phone!!!?. I looked a bit further and noticed they had taken the phone apart and it seems they have replaced the charging port, the battery also looks brand new and there isnt a scratch on it (I had previously marked it) So it seems they have indeed carried out some work, So i plugged it into the charger and guess what, it now works fine!!!!!!!!
So thank you very much O2 repair centre!! Im guessing they had to fix it first before they could test if it was rooted or not!!! their letter was a bit confusing though!! :laugh: :laugh:
Congratulations
Sent from my SM-N910F
Does anybody find it weird that o2 would fix mjw2k11's Note 4 only to send it back to him saying that they couldn't fix it because he had messed around with the firmware? Anyway I'm glad that you managed to get your Note 4 fixed.
i dont find it weird. It wont turn on right. but 'O2' wont repair if anyone modify's their phone. So they want to turn it on to see if it has been modified & unofficial but they cant even do that yet. The logical thing for them is to try to get it to boot up, which they did by changing a battery or fixing inside. (which solved the OP's problem). O2 then see's that Knox counters been tripped & they dont do anything further & send it back to the owner. Happy & lucky he is
Hello!
I bought a new screen for my S5, but when i went ahead and change it the phone kept going to endless cycle of booting and restating(reaches until the led turns blue and power off) tried to reflash the phone didn't work until i went all the way back to 4.4.4 then it worked but I found another problem, everytime i try and unlock the phone it simple gives up and reboots. I installed a mirror apk and disconnected the screen and powered on the device and tried to create the same problem by locking and unlocking the device the phone worked fine....I know the screen is for this device is simply a defected screen or am I doing something wrong?
mohali267 said:
Hello! I bought a new screen for my S5, but when i went ahead.......
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I can only think of 3 suspects based upon your question and step 20 on the following guide.
https://www.ifixit.com/Guide/Samsung+Galaxy+S5+Display+Assembly+Replacement/26914
1) The ribbon connector from the Digitizer to the device may not be seated well.
2) A defective Digitizer.
3) The wrong Digitizer.
Other than that, I can't think of any other reason why it's doing that.
Good Luck!
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I DO NOT provide support via PM unless asked/requested by myself. PLEASE keep it in the threads where everyone can share.
I had this problem years ago on another device. But i'm sure it happened with a Kitkat based custom rom. That's unlikely a hardware issue. For me, an update of either the rom or Google Play Services seemed to fix it, after having to use an unprotected device for some time, or nothing.
My S5 came with 4.4.4 if i remember, but Lollipop was already out & i never experienced this issue on the S5.
Hi, I have a LG K20 Plus. I currently can't turn the phone on, so I don't have much software information to give you. The phone was bought at T-Mobile (Metro by T-Mobile) and I had a SafeLink sim card and a 16 gb micro sd card inserted when the issue started. I have since removed both. It says Qualcomm snapdragon on the screen when it starts. It was also rooted and the bootloader is unlocked.
I broke the screen on my phone and I decided to do the repair myself. I have done about 7 or 8 screen replacements and I actually did this phone a year ago with no issues, so I felt I could manage this one as well. I bought an entire display (from ebay) and switched it out with no problems. Initially it worked great! I used it for a few days before realizing that I had no sound. I opened it back up and noticed the loud speaker had fallen out. I found it, put it back in, reassembled it as I normally do and turned it on.
NOTE: when I was reassembling it the second time, I actually tried to put a screw in a hole that wasn't a screw hole. I used a light to normal amount of pressure but I didn't force it. I think it's the hole where the moisture detector is. Picture #1
I turned it on and right after the logo screen I got a message that said "High temperature detected Powering off for your safety" and it immediately shut off. The phone does appear to charge normally but it won't stay on. I did a factory reset (I'm not sure if it's still rooted but the bootloader is still unlocked). I also switched back to the old (broken) display just to check if that would work. I couldn't see any difference in the shielding but I switched them just to be sure. I bought a new battery and installed it. I took a q-tip and 95% Isopropyl Alcohol and cleaned pretty much the entire motherboard, paying special attention to the battery connections. After each one of these things, I tried to start it with the same error message immediately upon start up.
NOTE: At no point has the phone every physically felt hot or even warm. I don't think it's on long enough for it to get hot. But something is wrong and I have no idea what it is. I, literally, took the phone apart, put in the speaker and put it back together in less than 5 minutes. Could it be I just bumped something and knocked it loose?
I searched for any information I could find both here and with google but there is next to no information on the LG K20 Plus. I did find some information on the LG V20 that had overheating issues, and that has been all the luck I've had. I watched several videos and it seems the solution is to apply thermal paste. But my phone doesn't have any evidence that thermal paste was ever on it. I went and bought some but I have no idea where exactly to put it or even if it's needed. Most videos showed people using some kind of aluminum foil but I'm not sure if that is safe. I have several old phone laying around and I managed to get some of the silver tape and a copper square thing but, again, my phone did not have these things to begin with. I don't want to start adding things only to make it worse.
There is a slight difference of the tape that is on my phone now (the display I just bought) as compared to the old one (broken display). Picture #2 Again, I have no idea if that means anything but I thought it worth mentioning. Picture #3 is how it looks now as if I were going to put it back together. Picture #4 is the part (don't know name) where the videos show to apply the thermal paste and the shielding.
I'm really at a loss as to what to do next and I can't really afford to take it in to have it repaired before next month. If anybody has any insight or answers as to what happened, I'd be very grateful for your help. I'm sorry for the long post. I just wanted to tell you everything I have done in detail. Thank you
If you're using Kernel Auditor or any other kernel adjustment simply reset to default and use only ondemand or interactive. There's also options for the thermal portion of the kernel, don't mess with those. If VCC or another thermal option was checked off turn it back on. Putting the GPS to the moderate setting (the one below high accuracy) will keep the temps down as well. Are you using a custom ROM? If you're on Discord you can feel free to message me SCOPE★ BRΞΛD #8460 . I am only offering that so we can get this resolved quickly for you, just copy and paste since I use special characters.
Omgosh, thank you so much for taking the time to respond! Although I'm sure everything you are saying is very smart, I have absolutely no idea what you're saying. I'll do my best to try and answer you. I don't know what SCOPE is or how to send a message there. I don't think I'm using any thing for the "kernal". Also, I don't know what VCC or Discord is. As far as turning off setting for GPS or any other app, the phone will not stay on. I get about 1 sec after the logo when it boots up, then the error message about overheating and it immediately shuts off. I did a factory reset so everything should be good to go as far as apps. I don't think I'm using a custom ROM. The only thing I did was install TWRP, unlocked the bootloader and rooted the phone a year ago but nothing since then. As I stated earlier, this happened right after I did a display repair. Is there something on the MOBO that can get bumped that will make your phone get hot or send a overheating error. My phone doesn't show any sign that there was ever thermal paste on it prior but should I add some now. Will that help?
Update... Now the phone does not power on at all. When I plug it in to charge it I get an error that says "Device temperature is too high or low. Please move to another place to charge. I wonder where you went. I googled SCOPE so I could sign up to message you like you asked me to but nothing but definitions came up. I know I'm out of my league here. You guys all talk so technical. I didn't understand one thing the person asked me for. I know it's rare to get a response as quickly as I did and I was so happy to see someone had responded. Now, I just feel stupid and defeated. I thought this site was inexperienced with cell phones friendly. I'm just trying to get help so I don't have to go out and buy another phone again. Can someone refer me to a site that is more directed toward people who don't know much about the technical side of cell phones... please! Again, thank you for your time.
HelpNeededPlz said:
Update... Now the phone does not power on at all. When I plug it in to charge it I get an error that says "Device temperature is too high or low. Please move to another place to charge. I wonder where you went. I googled SCOPE so I could sign up to message you like you asked me to but nothing but definitions came up. I know I'm out of my league here. You guys all talk so technical. I didn't understand one thing the person asked me for. I know it's rare to get a response as quickly as I did and I was so happy to see someone had responded. Now, I just feel stupid and defeated. I thought this site was inexperienced with cell phones friendly. I'm just trying to get help so I don't have to go out and buy another phone again. Can someone refer me to a site that is more directed toward people who don't know much about the technical side of cell phones... please! Again, thank you for your time.
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Hey, I just wanted to say sorry this happened to you. The same thing happened to me. My LG K20 Plus, no matter what button combinations I push and for how long I hold them, will not turn on or go into download mode. Plugging it in to a charger or PC does nothing either. Before it got to this state, I got the infamous green screen of death/Demigod crash handler (google this--it's a known issue with some models of LG phones and it happens when they overheat). It's definitely a hardware/build issue, and especially since this issue keeps the phone from turning on or connecting to a computer, I don't see a workable fix short of buying a new phone, unfortunately. Again, I'm in the same boat so I'm not happy about it either. I would say XDA is by far the best site to find a fix to this sort of problem, so if no one here has any suggestions on how to fix it, I think you (we) may be out of luck.
Thank you for letting me know. I'm not sure of some of what you said but I did catch the bottom line. Basically, just hold onto the phone until someone here comes up with a fix or workaround? I have a question for you. Did your problem start after you did some kind of repair? I'm wondering if I bumped something on the mobo to make it give a false overheating error. Do you happen to know where that sensor might be located? Sorry you are having problems to. It really stinks when your phone breaks and no matter how much time and energy you put it to figuring out the problem to fix it, there just isn't any good answers out there. I wish you lots of luck and if you figure anything out, please update here so I can try it too.
You need a whole new phone.
That or you're gonna have to replace the hardware