Database Develop

[Q] GT-I9001 Shuts down several times each day

Hi guys,
I have no idea what to do anymore. My Samsung GT-I9001 shuts down several times each day - its really annoying.
In the beginning I had the original Android installed and very soon the phone started to shut down, reboot, or to freeze.
I flashed the phone with the latest Gingerbread version. The phone still shut down, but it didnt freeze or reboot anymore. However, since that I had problems with my WLAN connection. Most time the phone didnt connect automatically to my WLAN and it disconnected the connection after some time although the signal was very good.
Because of these problems I flashed my phone with CyanogenMod 9 RC (Build 4) yesterday. Some hours after the flash my phone shut down again. Today it did the same again. Apart from that, everything seems to work fine.
Does CM9 have some kind of log files where I could check why my phone is shutting down? Or do you have any other ideas I could try?
Thank you very much!
Haberl

Phone keeps rebooting randomly and shuts down when idle for too long (during night)

Hello everyone,
This is my first post on XDA so please forgive me if I'm doing something wrong.
So my story, I got a refurbished unit at Swappa, I updated to the newest version directly (G920TUVU3DOI1) and it was working fine for the first week or so. Then the reboots started happening, I didn't give it too much thought but looked into it anyways.
At first I thought it was a problem with the WiFi and I tried to keep it off for a while, and it did work for a day but again the restarts kept happening, and now with the phone turning off during the night (no apparent loss in battery mind you).
Then I went to rooting and custom kernels.
I installed unikernel v8-0002 through Odin3_v3.10.6 and I tried removing some Samsung apps with TitaniumBackup in case there was some conflict happening but the restarts kept happening.
Then I installed a custom ROM, "XtreStoLite_ROM_v2.4_Deo-Mod-Edition_XXU3COI9_G920-5-F-I-T-W8-K-L-S" to be more specific.
And to my surprise it worked great, no restarts or shutdowns for about 2-3 weeks, it was great!
But then out of the blue the restarts started happening, they started slow, about 2-3 a day.
But after a few days they went to 10-20 and after that 100-200 a day.
Something was definitely wrong. So I installed the original firmware again (G920TUVU3DOI1_G920TTMB3DOI1_G920TUVU3DOI1_HOME) and booted to the stock firmware, restarts kept happening of course (didn't expect them to stop).
So I retreaded my steps and installed multiple other kernels (Unikernel V9, Vindicator, multiple different flavors of them). Also I installed multiple ROMs (Arrow_ROM_v6.0.0, and DN5 - S6 FLAT - EDGE v4 OJ5 - deodex) but nothing seems to work;
I did multiple wipes, storage wipes, cache wipes, factory resets (from GUI and twrp-2.8.7.2-zeroflte) but every time the same thing happens.
I did notice that the phone stutters and freezes, a behavior that I have not experienced before.
I installed CatLog and got multiple log files when the phone restarts but all of them are different and there is no "pattern" to be found (at least in first inspection). I want to upload them but my post count prohibits it.
Please let me know what can I do, I will reply to your questions ASAP so at least I can get some light into what is happening.
Thank you!

I'm in the same boat. Never had a problem before. Received my phone back from Samsung after a screen repair and now, doesnt matter what rom, kernel, patch, it always ends in random reboots. Most often when I'm scrolling or if a page is loading something in the background. It does a lot of hot reboots (not full shutdown and start ups) so its quick but infuriating. Tried everything, slowly losing my patience.
Any idea what it could be? Something related to Knox? Bootloader/Modem?

#3
Hello, I am too having the same problem. Even after a factory reset

Urgent help needed: Phone reboots continuosly after setup

I am currently experiencing continuous reboot on my Single Sim Z3+ phone on .253 firmware. It used to be ok but about a week ago I started experiencing this problem as soon as I reboot the phone after setting it up from a fresh install with full wipe. It seems to work normal on earlier builds like 28.0.A.8.266 so only happens on 32.1.A.1.185; 32.2.A.0.224 - .253. I repeat, I have done fresh install with Full wipe several times but problem still exists. Urgent help needed.
Thanks

yawo76 said:
I am currently experiencing continuous reboot on my Single Sim Z3+ phone on .253 firmware. It used to be ok but about a week ago I started experiencing this problem as soon as I reboot the phone after setting it up from a fresh install with full wipe. It seems to work normal on earlier builds like 28.0.A.8.266 so only happens on 32.1.A.1.185; 32.2.A.0.224 - .253. I repeat, I have done fresh install with Full wipe several times but problem still exists. Urgent help needed.
Thanks
Click to expand...
Click to collapse
Hello yawo76,
I have the same device, and I had the same problem, what I did is the next:
With flashtool, download the stock firmware via xperia firm on the same tool (I have successful with E6553_32.2.A.0.253_1295-0156_R6C), after that, in the options, be sure that the MiscTA Exclude options are check, that's the clue. After that complete the setup menu, and try again.
Regards! and sorry for my horrible english.

I do have the same issue. I have Z3+ Dual. Random reboot and/or sleep of death.
What I saw from other posts about hardware issue (no other proof), is about the NFC antenna. But I tried and nothing changed.
I have my phone fresh ROM .253 MM installed and click all the way to home screen and let it sit. Well, nothing happened for many hours 5-6hr. Almost every other hardware functions off. However, once I turned on WIFI, something happened. Blank screen and 3 red LED blinks to reboot. A few moments later at home screen.
Soon, sleep of death (SOD). It is like, when the phone is standby (black screen sleep), when I pushed power button to wake the phone, it won't turn screen on. Like it's hang or something. No choice but to hard reset so that I could turn back on.
Then, I played with WIFI setting and saw a "Keep Wifi On during Sleep". I switched to "never" and tried let it sit again. I found out problem was gone for 10 hours (this is best record now, usually 2-3 hours, reboot happened).
I am still monitoring.
Wish you can try and confirm this.

I ran many tests about this issue. Found out it was the material of board or CPU or power which was not made strong enough. I tried tuning the CPU a little (just like PC of CPU tuning). So that it will not cause SOD, random reboot issue. It was also adjusted such that the battery saves much and prolong the usage of the phone.
With sitting of standby the phone is not running warm. Messages or phone calls will not delay in receiving. Plus, it draws about 2% of juice during standby of 6-8 hours.
Worth the try.

Weird restarting every now and again after root and also weird behaviour

Ever since I rooted my E5, It has been restarting every few hours, or sometimes even every few minutes. The thing is, it's not a normal restart. It is much quicker, just shows a boot animation and suddenly I'm back after a few seconds. Almost as if I just locked my phone for a while. If I manually restart, it takes longer and after a minute or two it'll do the quick restart. Every time this happens, at my lock screen im asked to put in my pin instead of fingerprint to unlock fingerprint even though just a few seconds ago I used fingerprint to unlock.

I had same problem but with different phone.
So the only way is to buy a new one.

Have you tried other roms? Are you stock and just using magisk, Do you have a theme engine like Substratum. Give us more info

December update scared me to death (Freeze, long boot)

I'm just putting this here to hopefully help someone else not lose their mind after a bad December update. I just got my OTA for my 4XL on VZW about 40 minutes ago. MY PHONE JUST BOOTED.
After applying the update and the phone restarting, per usual, I noticed the lock screen was super sluggish and intermittently not responsive. More concerning still, it said my PIN was invalid, which I KNOW it wasn't. So.... I rebooted. Just held power for a second, and clicked Restart in the menu. That may have been where I went wrong. For the next 25 or so minutes, I had nothing but a black screen. No sounds, no vibrations, nothing registered when plugging into my PC. Even holding the power key for 30+ seconds or attempting safe mode or bootloader did not work.
In retrospect, I am now considering that even though the phone initially rebooted and was at the lock screen, Android may still have been in the process of updating which could cause the slow down and maybe even the invalid pin. Mostly, I think that may be what happened when I rebooted the phone, I basically did it in the middle of it finalizing the update which very well could have caused all sorts of issues.
TLDR: I don't think I did anything to fix it, I gave up after 1000 times of trying and set it down, then about 5 minutes later (off the charger) it just started booting up. So don't throw your phone at the wall if it doesn't turn on right away after the update.

lessthanzach said:
I'm just putting this here to hopefully help someone else not lose their mind after a bad December update. I just got my OTA for my 4XL on VZW about 40 minutes ago. MY PHONE JUST BOOTED.
After applying the update and the phone restarting, per usual, I noticed the lock screen was super sluggish and intermittently not responsive. More concerning still, it said my PIN was invalid, which I KNOW it wasn't. So.... I rebooted. Just held power for a second, and clicked Restart in the menu. That may have been where I went wrong. For the next 25 or so minutes, I had nothing but a black screen. No sounds, no vibrations, nothing registered when plugging into my PC. Even holding the power key for 30+ seconds or attempting safe mode or bootloader did not work.
In retrospect, I am now considering that even though the phone initially rebooted and was at the lock screen, Android may still have been in the process of updating which could cause the slow down and maybe even the invalid pin. Mostly, I think that may be what happened when I rebooted the phone, I basically did it in the middle of it finalizing the update which very well could have caused all sorts of issues.
TLDR: I don't think I did anything to fix it, I gave up after 1000 times of trying and set it down, then about 5 minutes later (off the charger) it just started booting up. So don't throw your phone at the wall if it doesn't turn on right away after the update.
Click to expand...
Click to collapse
Were you rooted ?

reboot took longer than normal, should have left it
factory reset will clear up everything lol

prgopala said:
Were you rooted ?
Click to expand...
Click to collapse
I am not rooted. Gave up my rooting back when it made Google pay and Pokemon Go a complete ***** to use, even with magisk. So I've left this stock out of the box.

lessthanzach said:
I'm just putting this here to hopefully help someone else not lose their mind after a bad December update. I just got my OTA for my 4XL on VZW about 40 minutes ago. MY PHONE JUST BOOTED.
After applying the update and the phone restarting, per usual, I noticed the lock screen was super sluggish and intermittently not responsive. More concerning still, it said my PIN was invalid, which I KNOW it wasn't. So.... I rebooted. Just held power for a second, and clicked Restart in the menu. That may have been where I went wrong. For the next 25 or so minutes, I had nothing but a black screen. No sounds, no vibrations, nothing registered when plugging into my PC. Even holding the power key for 30+ seconds or attempting safe mode or bootloader did not work.
In retrospect, I am now considering that even though the phone initially rebooted and was at the lock screen, Android may still have been in the process of updating which could cause the slow down and maybe even the invalid pin. Mostly, I think that may be what happened when I rebooted the phone, I basically did it in the middle of it finalizing the update which very well could have caused all sorts of issues.
TLDR: I don't think I did anything to fix it, I gave up after 1000 times of trying and set it down, then about 5 minutes later (off the charger) it just started booting up. So don't throw your phone at the wall if it doesn't turn on right away after the update.
Click to expand...
Click to collapse
Hey got the same issue as you. Either it's stuck on a black screen (adb works), either it hangs on Applying update when starting the phone. Can't seem to get past this crap... I'm trying with a patched magisk image btw, not sure if it's the issue, I already applied the magisk adb commande in order to remove the magisk modules but to no avail.