I am having a boot loop issue. I have T-Mobile G4 that is NOT rooted. I bought it on release day. I too would get random reboots, particularly after the recent security update. I also noticed that the operating temperature was really high, a lot lately. I thought it was a rogue app (clean master). Anyway, I updated a few apps and installed a few watch faces. Suddenly, my phone was drained prematurely. Plugged it into a quick charge charger when all the fun begins. Early on it would boot to the home screen but would reboot a minute or two later. Then it stopped booting to home. On two occasions that I caught, it was starting up like a firmware update just installed with the "Android is starting 1 of 143 apps" type of line. After seeing that and still not getting to home, I figured I might as well factory reset it. Well I was amazed to discover that a factory reset yields the same boot loop. All I get is the LG logo.
Defeated. I go to my local TMo retailer where I bought the phone only to find out that I have to wait for delivery of a replacement( I smell refurb). I'm in Jump btw. I did notice that when the phone will boot to home screen for whatever length of time, the LED would work. The LED does not work during a boot loop. My research on this issue uncovered an alarming trend on the Internet. No solutions other than replacement. No cause has been identified either. Without proof, these are my top suspicions: Quick charge, 128G SD, apps moved to SD. My hunch is quick charge. All of my chargers are Qualcomm certified quick chargers. and I use them 95% of the time. I would hate to add LG to my list of boycotted Android vendors under Samsung.
Things I tried:
Recovery mode
Download mode
No SIM, Battery and/or SD
Swapping batteries
Safe mode (once)
This happened to me yesterday. I was listening to music through the bluetooth at the gym and it stopped playing. When I walked over to the phone it was already in a boot loop.
Reflashing does nothing nor does a factory reset. They are sending me a new one as well.
Funny thing is once it did make itself passed the boot screen to: "updating apps" This smells like an update is bricking phones. I went to the store and the agent said he couldn't find any data on a recent update but I think he wasn't looking at the right place. If there's an update bricking phones I will be livid. I'm 40 days away from a Jump upgrade and they said I can't exchange it early anyway because it "has to be in working condition." Well no ****, YOU can do the warranty replacement...give me a new phone! I too abandoned Samsung after the Lollipop Note Edge upgrade made the phone discharge in 3 hours or less and run as smooth as gravel. LG has suddenly made me sour too.
Same exact issue as you described.
Also tried everything you did. I went with TMO's replacement, and to my surprise, it was a new phone rather than a refurb.
I have three kids who received kindle fire 5th gens for Christmas. Long story short, the extended family member who gifted these tablets has broken ties with me, and taken it out on the kids by locking two of the three tablets. One tablet can still be used, but as she changed the account password, I can no longer download apps or change any settings on the fire. Also, I'm beginning to have the space issue that I was having so often with all three tablets before, where the OS shuts off wifi because storage is becoming full. So here's my question, is there any way to backup all the games, data, and video that is currently on the unlocked tablet, factory reset it, and then restore them on my amazon account rather than the ex-family members? I'm pretty sure I know how to backup the whole tablet, but restoring that image after a factory reset would just put the current amazon account back on it, wouldn't it? I hate to tell my children that I will have to erase all of the collected things they've downloaded just to hand them back an empty tablet that I can access the settings on. Especially as some of those things were purchased, and would cost a fortune to collectively buy again. Please let me know if this is possible.
JessiDarklighter said:
I have three kids who received kindle fire 5th gens for Christmas. Long story short, the extended family member who gifted these tablets has broken ties with me, and taken it out on the kids by locking two of the three tablets. One tablet can still be used, but as she changed the account password, I can no longer download apps or change any settings on the fire. Also, I'm beginning to have the space issue that I was having so often with all three tablets before, where the OS shuts off wifi because storage is becoming full. So here's my question, is there any way to backup all the games, data, and video that is currently on the unlocked tablet, factory reset it, and then restore them on my amazon account rather than the ex-family members? I'm pretty sure I know how to backup the whole tablet, but restoring that image after a factory reset would just put the current amazon account back on it, wouldn't it? I hate to tell my children that I will have to erase all of the collected things they've downloaded just to hand them back an empty tablet that I can access the settings on. Especially as some of those things were purchased, and would cost a fortune to collectively buy again. Please let me know if this is possible.
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Click to collapse
It is not possible to (legally and to large degree practically) transfer purchased content to another Amazon account that is not part of the 'family'. It would be best to reinstall the free apps following a factory reset. I understand this is not what you were seeking but really is the best path IMHO.
Hi ...
So about Tuesday (14th) morning, my G4 rebooted itself, and went into perpetual bootloop. I bought it on 3/10/2016, so it was out of warranty by a few days. I'd heard, various places online, that people were getting their G4s fixed even out of warranty, but ....
First, I went to the T-Mobile store where I bought the phone. The rep there didn't know about the bootloop issue, and said he wasn't able to help me.
Next, I contacted LG live chat online, and they said they were unable to help because the camera lens is broken. (That happened within a month or so after getting the phone. Even if I didn't tell them up front, they still would have found out when they got it. I'd considered buying a replacement & installing it myself previously, but never could figure out which was the exact OEM model or where to get it.)
I really need to preserve the data that's on the phone. I'm not just talking about pictures, documents, downloaded files, etc (I think camera pics are backed up automatically, but idk about screenshots for example) ... I also mean Wi-Fi credentials, my 60-70+ open Chrome browser tabs & history, txt/mms messages, call logs, voice mails (stored in the T-Mo Visual Voicemail app) - basically everything.
Both T-Mobile and LG, if I understood right, told me that if they took the phone in for repair, one of the first things they'd do is factory reset it, which would wipe out that data, and I can't have that.
I'm at a loss for what to do right now. I really want to get my specific phone's bootloop / motherboard issue fixed, with its data retained, and not get it replaced, at no cost to me. (Don't care so much about the camera, it's still working fine even with the external lens busted off.) If I have to replace the phone, I still need to preserve the data I mentioned above, plus anything else I may have forgotten. (Basically a full system image/clone.) Also I haven't rooted / installed a custom OS.
If replacing with a new phone is in order, I'll want a really good one without breaking the bank. (I was going to keep the G4 until 2020 or 2021, if not longer - my T-Mobile G1 lasted 4.5 years and was a then-lower-end phone at the time than the G4.) I'm still trying to figure out what all I want in the phone, or what my budget is. (I *do* know I don't want anything by Apple, or an equivalent of the G4 or Note 7 of course.) My initial budget idea (ONLY for complete phone replacement, NOT if repair is involved), subject to modification, would include taking the $ I would have used to upgrade my 4790K desktop PC to Ryzen 7, and instead getting a new phone. I'm thinking anywhere from $300 to $800. A few preliminary models that popped up in my search are the LG G6, Galaxy S8, Note 8, 1+5, Pixel/2, and a few other Asian-sounding brands I'm not sure about yet. If it's decided I have to get a new phone, I'll be making another post/thread asking for more advice in detail on that.
pianoplayer88key said:
Hi ...
So about Tuesday (14th) morning, my G4 rebooted itself, and went into perpetual bootloop. I bought it on 3/10/2016, so it was out of warranty by a few days. I'd heard, various places online, that people were getting their G4s fixed even out of warranty, but ....
First, I went to the T-Mobile store where I bought the phone. The rep there didn't know about the bootloop issue, and said he wasn't able to help me.
Next, I contacted LG live chat online, and they said they were unable to help because the camera lens is broken. (That happened within a month or so after getting the phone. Even if I didn't tell them up front, they still would have found out when they got it. I'd considered buying a replacement & installing it myself previously, but never could figure out which was the exact OEM model or where to get it.)
I really need to preserve the data that's on the phone. I'm not just talking about pictures, documents, downloaded files, etc (I think camera pics are backed up automatically, but idk about screenshots for example) ... I also mean Wi-Fi credentials, my 60-70+ open Chrome browser tabs & history, txt/mms messages, call logs, voice mails (stored in the T-Mo Visual Voicemail app) - basically everything.
Both T-Mobile and LG, if I understood right, told me that if they took the phone in for repair, one of the first things they'd do is factory reset it, which would wipe out that data, and I can't have that.
I'm at a loss for what to do right now. I really want to get my specific phone's bootloop / motherboard issue fixed, with its data retained, and not get it replaced, at no cost to me. (Don't care so much about the camera, it's still working fine even with the external lens busted off.) If I have to replace the phone, I still need to preserve the data I mentioned above, plus anything else I may have forgotten. (Basically a full system image/clone.) Also I haven't rooted / installed a custom OS.
If replacing with a new phone is in order, I'll want a really good one without breaking the bank. (I was going to keep the G4 until 2020 or 2021, if not longer - my T-Mobile G1 lasted 4.5 years and was a then-lower-end phone at the time than the G4.) I'm still trying to figure out what all I want in the phone, or what my budget is. (I *do* know I don't want anything by Apple, or an equivalent of the G4 or Note 7 of course.) My initial budget idea (ONLY for complete phone replacement, NOT if repair is involved), subject to modification, would include taking the $ I would have used to upgrade my 4790K desktop PC to Ryzen 7, and instead getting a new phone. I'm thinking anywhere from $300 to $800. A few preliminary models that popped up in my search are the LG G6, Galaxy S8, Note 8, 1+5, Pixel/2, and a few other Asian-sounding brands I'm not sure about yet. If it's decided I have to get a new phone, I'll be making another post/thread asking for more advice in detail on that.
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the safe way is to do the freezer method search and youll find tutorial.. get you data and stuff. use titanium to back up apps with data with the paid app..
raptorddd said:
the safe way is to do the freezer method search and youll find tutorial.. get you data and stuff. use titanium to back up apps with data with the paid app..
Click to expand...
Click to collapse
I've heard of the freezer method. I did pop it in the fridge and it almost started to work for a minute, but maybe I should try the freezer. I've also heard of people heating it and getting some temporary use out of it.
I have the paid Titanium Backup on my rooted Galaxy Relay 4G, but I haven't rooted the G4. And, once I went to a new phone, how would I restore without root? (I'd decided not to root until the warranty expired, but it'd be nice to get one that's more friendly to that in the future, also have better full backups, etc.)
Also I've heard there's a way to disable a couple cores & get it working that way, but I have Marshmallow and I hear it requires Lollipop.
pianoplayer88key said:
I've heard of the freezer method. I did pop it in the fridge and it almost started to work for a minute, but maybe I should try the freezer. I've also heard of people heating it and getting some temporary use out of it.
I have the paid Titanium Backup on my rooted Galaxy Relay 4G, but I haven't rooted the G4. And, once I went to a new phone, how would I restore without root? (I'd decided not to root until the warranty expired, but it'd be nice to get one that's more friendly to that in the future, also have better full backups, etc.)
Also I've heard there's a way to disable a couple cores & get it working that way, but I have Marshmallow and I hear it requires Lollipop.
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Click to collapse
we have antirollback in h811 if you are in 20i you are okey to downgrade if higher then 20i say 20o then you cant downgrade to lollipop.
not sure how you would go about restoring. your data..
raptorddd said:
we have antirollback in h811 if you are in 20i you are okey to downgrade if higher then 20i say 20o then you cant downgrade to lollipop.
not sure how you would go about restoring. your data..
Click to expand...
Click to collapse
Hmm... well since I can't boot (for now) past the LG screen, idk if I can even get TO a place where I can attempt a rollback.
And even if I have to use other methods to get the data back (so long as it doesn't cost much, as in less than the cost of an SD card) ... then another important criteria for my next phone is automatic backup of *everything*, either to the cloud, or to a second removable micro SD card, or something. (And, by backup of everything, I mean full system image basically.)
And the data I'm talking about includes, but is not limited to, call logs, browser history & open tabs (chrome was my primary browser on that phone), sms/mms messages, saved voicemails (in the T-Mobile Visual Voicemail app), and other things that aren't saved in places like Documents, Downloads, DCIM, Pictures, etc.
pianoplayer88key said:
Hmm... well since I can't boot (for now) past the LG screen, idk if I can even get TO a place where I can attempt a rollback.
And even if I have to use other methods to get the data back (so long as it doesn't cost much, as in less than the cost of an SD card) ... then another important criteria for my next phone is automatic backup of *everything*, either to the cloud, or to a second removable micro SD card, or something. (And, by backup of everything, I mean full system image basically.)
And the data I'm talking about includes, but is not limited to, call logs, browser history & open tabs (chrome was my primary browser on that phone), sms/mms messages, saved voicemails (in the T-Mobile Visual Voicemail app), and other things that aren't saved in places like Documents, Downloads, DCIM, Pictures, etc.
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Click to collapse
is bootloopng . thats a hardware issue.. i would suggest to do the freezer method .making sure no moist gets in phone.. i think people put in frezzer with cable and recovers their data.
So ... the freezer method has worked (with the phone in a Ziploc bag), at least partially. After turning off WiFi, a few days ago I was able to use ES File Explorer (already installed) to copy the internal phone memory to a 128GB SD card which was only about 10-20% full or so. (I couldn't copy absolutely everything, as my G4 isn't rooted yet.) I did it in stages - first copied several user data folders just in case it croaked mid-backup (it didn't), then did the rest.
Just earlier this morning, I used SuperBackup+ (or whatever it's called, I forget atm & the phone's charging again) to back up a few more things.
Then I went into the settings to see if anything was set to back up to the cloud, or could be backed up. Under "Backup and Reset", it was set to back up to my Google account. I also checked a few other settings.
Right before turning on WiFi again, I opened CPU-Z, to find most of the temps around 8°C. After turning WiFi back on, within seconds most of the temps shot up to the 30s to 60s °C, and the top 2 on the list (which included battery) pegged at 140°C, then the phone rebooted itself. So apparently turning WiFi on quickly overwhelms the phone. (I can't use mobile data, as I took the SIM card out and am using it in my SGH-T699 for now.) It then started up briefly, and while I *think* I may have been able to turn off WiFi again before it rebooted again, it started looping, from what I could tell. (Was probably time to take a break anyway, as I'd been standing there for a good 10-15 minutes or so with the freezer door open.)
I'm still hoping I might have a little bit of life left for backing up, after giving the phone a rest, battery a charge, letting the freezer settle down, and refreezing the phone.
One more thing I'd like to do with the phone - root it. Is there a way to do it without an internet connection, if possible without a computer (although maybe I could shut the freezer door on the USB cable), and for sure without wiping the device? I'd really like to use Titanium Backup Pro (already installed) to back everything up to the 128GB SD card.
Also I've heard about possibly disabling the two fast CPU cores, but also heard that may only work on Lollipop. (My G4 has Marshmallow installed.)
Anyway, right now the phone is plugged in (out of the freezer) and charging again. Interesting thing though ... while it was powered on in the freezer, it was saying I had 51% battery left. (This was right after I'd pulled it off the charger and it said 98-100% or so - the powered-off battery meter.) Then, plugging it back in (again powered off), it said 78%. Is the huge discrepancy in battery percentages temperature related, or indicative of another issue like a weakening battery? (The battery hasn't swelled at all, from what I can tell.)
I think it's time for a new phone soon, though. I might make another topic with more details, but a few I'm looking at maybe are the Asus Zenfone AR, Google Pixel, OnePlus 3T, Samsung Galaxy S7, maybe a few others. (I'm not as sure about the LG G6 or V20.) Other brands under consideration include HTC, Huawei, LeEco, Motorola, Oppo, vivo, Xiaomi & ZTE.
Basically I'd like something that
officially supports rooting / custom ROMs (and stock ROM is as close to vanilla Android as possible),
is officially supported for updates for a good while (for example if it comes with Android 7, I can upgrade to 9 or if possible 10 OTA, and beyond with community-made ROMs),
has a decent CPU/GPU (like SD 820/821/835 & Adreno 530/540),
plenty of RAM (6+ GB),
a decent amount of internal storage (64+ GB),
has either a micro SD slot or supports USB OTG or both,
among other things.
I'm guessing the 1+3T might be the best compromise? (Or stretch the budget & get the Pixel?) Or should I maybe consider waiting for the Pixel 2 or the OnePlus 4/5? Or get one of the other options / something else entirely? (I'd like to buy within the next month or two, if not sooner.) I had been planning to upgrade my desktop PC to AMD Ryzen 7, but figured I'd use the $ I would have spent on that, on the phone instead. (I can limp along on my i7-4790K a while longer, or my laptop's i7-6700K, etc, it'll just be somewhat slower in video editing, multitasking, etc. From what I hear my i7s are maybe faster at 1080p gaming, but I don't game all that much.)
I'm on T-Mobile - the $30/month 5GB+100min plan for now, but eventually tentatively plan to upgrade to unlimited with the unlimited hotspot addon.
Hi!,
I'm a long-time reader of this forum, but this is my first post. In the last few days, something happened (I wish I could pinpoint exactly what) where I ended up restarting my phone and it entered a continuous boot loop. The phone was receiving updates per normal and may have received an update not that long ago that required some kind of restart, but I'm not confident about that. Either way, the phone was restarted and it entered into a permanent boot loop.
Before restarting, I'm confident the "ear sensor" that turns the screen off when I'm on a call as functioning. I'm also confident the auto-rotate functionality of the phone was working perfectly.
After I tried to factory reset the phone from the power-volume reset options, I actually ran into a TON of trouble trying to get the phone to properly reset. It tooks me countless tries to eventually get the phone to start after resetting it over and over again. I was stuck trying to get the phone to actually move through the setup steps. SUPER frustrating. I actually went to sleep while the phone was somewhere in the middle of setting up and when I woke up the phone somehow eventually made it through some setup steps.
I'm now using the phone as I normally would, but it's very odd. The phone is a LOT more unstable. At least 3 of the sensors I had working have just completely stopped working.
The phone is in otherwise perfect condition. I'm genuinely confused about how I should go about trying to resetting this thing to a pure stock configuration and slowly installing apps again to make the experience what I'd want.
And no, I'm not a super power user. I am a strong engineer happy to do crazy things like flashing bootloaders and whatnot, but I'm honestly confused about where to start. I understand other versions of this device may have had corrupted persist partitions during updates -- those problems seem like my problems -- but I don't know how I should go about simply flashing my phone at the lowest level into something stock that I can try to build back from.
And obviously when talking to google support their suggsetion is that I mail them the device and wait 10 days without a phone. I'm confused about how that could EVER be a reasonable way to get a phone repaired, sigh -- phones are not toys, they're pretty critical to the day-to-day work of so many people including myself. I'm pretty disappointing with that approach from Google and I had always considered them much better than that before this experience.
Anyway, I'm really lost and I'd love to understand how to repair the software on my phone.
(You all kick ass!)
aliljet said:
Hi!,
I'm a long-time reader of this forum, but this is my first post. In the last few days, something happened (I wish I could pinpoint exactly what) where I ended up restarting my phone and it entered a continuous boot loop. The phone was receiving updates per normal and may have received an update not that long ago that required some kind of restart, but I'm not confident about that. Either way, the phone was restarted and it entered into a permanent boot loop.
Before restarting, I'm confident the "ear sensor" that turns the screen off when I'm on a call as functioning. I'm also confident the auto-rotate functionality of the phone was working perfectly.
After I tried to factory reset the phone from the power-volume reset options, I actually ran into a TON of trouble trying to get the phone to properly reset. It tooks me countless tries to eventually get the phone to start after resetting it over and over again. I was stuck trying to get the phone to actually move through the setup steps. SUPER frustrating. I actually went to sleep while the phone was somewhere in the middle of setting up and when I woke up the phone somehow eventually made it through some setup steps.
I'm now using the phone as I normally would, but it's very odd. The phone is a LOT more unstable. At least 3 of the sensors I had working have just completely stopped working.
The phone is in otherwise perfect condition. I'm genuinely confused about how I should go about trying to resetting this thing to a pure stock configuration and slowly installing apps again to make the experience what I'd want.
And no, I'm not a super power user. I am a strong engineer happy to do crazy things like flashing bootloaders and whatnot, but I'm honestly confused about where to start. I understand other versions of this device may have had corrupted persist partitions during updates -- those problems seem like my problems -- but I don't know how I should go about simply flashing my phone at the lowest level into something stock that I can try to build back from.
And obviously when talking to google support their suggsetion is that I mail them the device and wait 10 days without a phone. I'm confused about how that could EVER be a reasonable way to get a phone repaired, sigh -- phones are not toys, they're pretty critical to the day-to-day work of so many people including myself. I'm pretty disappointing with that approach from Google and I had always considered them much better than that before this experience.
Anyway, I'm really lost and I'd love to understand how to repair the software on my phone.
(You all kick ass!)
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Click to collapse
I would try flashing the latest factory image via fastboot.
[Guide] Root Pixel 4 XL with Magisk Android 13
[Guide] Root Pixel 4 XL With Magisk Android 13 Android Security Bulletin—Feburary 2023 Pixel Update Bulletin—Feburary 2023 Introduction This Guide is for Pixel 4 XL owners that want to Root their phone, and enjoy the benefits of rooting it. The...
forum.xda-developers.com
https://forum.xda-developers.com/t/guide-unlock-flash-root-for-the-pixel-2-xl-taimen.3702418/ (This is for a Pixel 2 XL but the process is the same. It's basically a condensed version of the one above.)
aliljet said:
Hi!,
I'm a long-time reader of this forum, but this is my first post. In the last few days, something happened (I wish I could pinpoint exactly what) where I ended up restarting my phone and it entered a continuous boot loop. The phone was receiving updates per normal and may have received an update not that long ago that required some kind of restart, but I'm not confident about that. Either way, the phone was restarted and it entered into a permanent boot loop.
Click to expand...
Click to collapse
You did not provide the most important information we need- whether your phone is bootloader unlocked. Probably not, otherwise you would have already flashed it with a full Google image, which returns the phone to "out of the box" condition. You need to determine whether you can unlock your bootloader. If you cannot unlock (allow oem unlock is off and or greyed out in Dev options) then you will not be able to fastboot flash ANYTHING. If that is your case, the next best thing is flashing a full OTA image (sometimes called a rescue OTA) from recovery mode using the OTA via ADB option. This means you need fastboot/adb installed and working on your PC. Instructions on how are on the same Google dev page for OTA's.
So, my phone's bootloader is not unlocked. But I have an update for the crowd that may one day find this. I know your frustration and I can report that my phone is once again fixed.
A day (or two) after I sent this, a set of updates came down to my phone. And WebView was updated. That restored all of my sensors and also restored most of my crashing applications. It was an incredibly odd experience.
My phone once again functions. And the nightmare of owning a Google phone and talking to Google support has ended.