[Q] Phone Stuck in Bootloop - Sprint Samsung Galaxy S 4 Q&A, Help & Troubleshoot

OK, yesterday I ****ed up really bad. I have a Sprint Galaxy S4 (SPH-L720T)
My phone was acting slow, so I factory reset it and cleared the cache partition.
Then I reflashed the custom ROM I had on it before the factory reset.
ODIN said it was a success and the phone automatically rebooted.
Except this time, it stayed stuck on the yellow "Sprint Spark" screen.
I tried to go into recovery mode (I have ClockWorkMod) and the phone shuts off as soon as I turn it on into recovery mode.
I have reflashed the root and CWM successfully, but no matter what I do, it just won't go into recovery mode or get past the "Sprint Spark" screen.
On top of that, my internet speed is approximately 150 Kb/s, so there is no ****ing way I can download another ROM.
Every time I try, the download will complete prematurely, and not download the whole file, or it will get about 80% through and say "unexpected network error".
I have the latest version of Google Chrome on my Windows 8.1 Lenovo desktop.
Let me know if I missed any information, and please please please help me.
This phone is my daily user and I need it to be working.

Related

[Q] I somehow lost my recovery?

So I was running CWM (Philz) I believe, and I had been running into issues while on rooted 4.2.2 D800 stock ROM. There were force closes and random reboots, etc. I've only installed xposed mods. I've also used android tuner to adjust some of the build.prop and kernel presets.
However, after my phone got stuck in what I thought was a boot loop, I finally got it up and running. What happened next was odd. I tried booting into recovery -> the "LG" splash screen showed up and it went into another infinite boot loop.
I'm assuming I somehow corrupted or lost my recovery. Any advice on what to do? I don't know if I should follow the original instructions for flashing a recovery here - http://forum.xda-developers.com/showthread.php?t=2633150.
Edit: Jesus christ my phone infuriates and confuses the hell out of me. After attempting to enter the recovery again, I am now stuck in a permanent boot loop. The last time I fixed it was by turning my phone off....and then *WAITING*.
What? That doesn't make sense you say? Of course it doesn't. But that's still what worked. I waited 12 hours, and then tried turning it on again. When I did, oh look, the AT&T screen!
CONFUSING. help please...
Double edit (Hard Mode): Going into download mode when I'm in this constant bootloop = nothing happens. That little icon that says "Download Mode" with the 5 blue circles just stays there, and my laptop ends up not recognizing anything. This happened the last time too, and all I was able to see on my laptop was "QHSUSB_BULK". I thought this meant that I would have to do a complete wiping process through Linux (found on another thread somewhere), but apparently waiting 12 hours also fixed the problem.

[Q] Samsung Galaxy S4 sph-l720t (sprint) stuck in bootloop

I just got this phone alittle over a month ago. Today at work, my phone randomly shut down and started continuously restarting. The phone will vibrate and boot the logo, then turn into a black screen, vibrate again, and restart. I had not modified my device at all. Just downloaded your typical apps like anyone else. I already tried taking out the battery and letting it sit and booting in recovery mode and wiping the cache and restoring to factory settings. I also tried to use odin to flash what i think is my firmware onto the device. I wasn't able to figure out the firmware of the device before I did it so i sort of guessed based on the model. Though all i did for this is download what i thought was the firmware, put it in odin3.4, entered download mode and plugged my device in and let it download. I didnt do any rooting or enable debugging/disable debugging before i used odin. Did I miss a step? Does anyone have any suggestions of something I else do. I am so confused on how this happened to my phone!

Sm-g900f (uk) galaxy s5 - arrgghhhhh

Can anyone PLEASE help??
My partner opted to do a suggested update on her S5, but didn't notice the wifi was off. The phone seemed to have done the update, but shortly after it rebooted itself, then again, then again. The frequency of reboot got quicker and quicker and now it loops between the Galaxy S5 splash screen and the SAMSUNG logo, but doesn't go any further.
I managed to boot the phone into reset mode, cleared the cache and then did a factory reset, but that did nothing to prevent the boot loop.
I then downloaded Odin (ver 10.3.7) and what I believed to be the correct firmware (G900FXXS1CPLV_G900FVFR1CPJ1_G900FXXU1CPIW_HOME.tar.md5).
Having checked the battery was charged, I followed the instructions of connecting the phone via USB, loading the md5 in the AP, checking Auto Reboot and F-Set time in the options and clicking the Odin Start button. I had removed the battery, replaced it and then booted it into the update mode (Power, Home, Volume Down, then volume up) with the screen confirming I was in the right place (....do not unplug.... etc).
The file loaded, (green bar at top of the Odin window on my PC) and Odin reported success. I then disconnected the phone, booted in recovery mode, reset the cache and then did a clear data, factory reset.
The same symptoms prevail, STUCK IN BOOT LOOP!!!!
The only thing different is that if I plug it into the USB on my PC, after a while the phone tries to turn itself on and goes into either a boot loop or freezes on the Galaxy S5 Splash screen or the SAMSUNG Logo.
I am charging another battery (just in case that is in some way to blame) and will try again to replace the firmware, but could I be missing something, do I need to do anything with PIT (I thought this was all taken care of by Odin using the MD5 file) or is there some other test I can perform that will show if the phone is fried???
MANY THANKS for looking!
ur going correct, try to reflash it again through odin and dont disconnect phone until it boots into system, it is taking some good time, so just wait and dont do anything this time like clearing anything or restoring. i hope ull get success.
THANKS - but...
Thanks Rayzen, I will try the whole thing again, but I think there is something more to this than a firmware fault!
There and gone again
OK, so on the 4th attempt I got the phone to take the firmware using Odin, it reported success and the phone rebooted itself (several times) and eventually appeared to boot to a new factory reset.
I put in a SIM card and entered my email and google account details and left it charging over night. This morning when I tried to use it, the screen froze and then it rebooted itself. Hey presto, the phone is back to square one with a boot loop.
ANYONE (please) got any suggestions?
THANKS
No one??
same here, same symptoms, same feeling.
when flash gone right... i feel lucky.. but for half hour only, rebooted and angain in boot loop.
I cannot even boot in recovery. flashed TWRP. from 5 boots in recovery only 1 success.
When trying to wipe phone in TWRP - it hangs.
still trying to install some other (custom) rom. still no success.
hope never dies
same things happened here! now cant get samsung galaxy s5 to boot...............
Are you sure your using right firmware? as it took me a few versions before it booted last time this happened?
Could any please confirm what is the right firmware for samsung galaxy s5 900F
It took another 6 or 7 attempts, left it over night and was about to trash it when it booted.
I then received a 'software update available' message and tried installing it. First attempt put the phone back into boot loop so I reflashed it again using Odin.
That worked immediately the over the network software update installed and now phone is 100%
Very frustrating but I got there!
glad you fixed it! ive tried three different firmwares and still nothing.
trying this one atm
G900FXXU1ANE2_G900FEVR1AND1_G900FXXU1ANE2_HOME.tar
oh and how long do they take to boot when there are sitting at the samsung glowing screen?>
I'm in UK and used what (I had to guess) was the best firmware.
I'll let you know which version it was when I get home tonight.
BUT I had all the problems with a single version and it eventually came good.
I read somewhere that overwriting a different core (from specific providers) with generic firmware, could lead to a world of pain until it gets full replaced... not sure if that's a good description (or has any fact to it) but it seemed to be re-loading and re-loading and re........ for ages, finally cracked it.
well mines booted now!but getting constant errors about samsung push!
If it'still booted, you'very made progress!
Push issues are mentioned elsewhere and can (eventually be sorted) but if you have a booted phone you should be able to get an over the air software update installed from the service provider....?!

Stuck on encryption lock screen, won't boot PLEASE HELP

Hey everyone,
So my phone died and then I got it charged and turned on and it booted up to the encryption lock screen where it says to start up your device, enter your pin. So I enter my pin and then its says, "verified" and then "starting android". and then a padlock appears on the screen, it opens, and there's like a load up circle going around it. At first, I let the phone sit to see if it would do anything but after an hour, I figured something is wrong. I dont know why this happened, I think I might have accidentally turned on the secondary encryption, but this really sucks, I don't want to have to factory reset and lose all my pictures and data. I can boot into recovery mode but sometimes when i turn it on it shows a screen that says installing update and has like a google ring looking thing that should be spinning around but it looks like its glitching out, after that screen it will go to a no command screen, and then it will eventually reach recovery mode. I really hope someone can help or knows what is going on because, I really dont want to lose all my stuff.
Thanks for your time
I tried posting link but im new, if you look up s7 edge frozen encryption, its the first link , another person describes the same issue.
I had this issue. In recovery, tell it to clear the delvic cache. Then try a reboot.
It too a few attempts before the phone would not boot directly into recovery. But once i got it to do a normal boot, it started normally.
Then after it's running, back it all up, boot into recovery, and do a system restore.
Hi I wonder if anyone can help me. I restarted my phone, it asks for my pin which I enter correctly. It then gets stuck on spinning padlock. I've tried a soft reset (I think that's what it's called, holding down power and volume keys). It restarts, I enter pin, it says starting android then gets stuck again. I'm not very tech minded (typical girl). Can anyone help. I'd rather not lose all my photos and apps. Thank you so so much in advance. Toni x
I am facing the same issue, but with a Samsung Galaxy S8.
- Safe mode: doesn't boot
- Recovery mode: works, clear cache doesn't solve the problem.
So since nothing worked to make it work (except the Factory Reset, but I didn't tried this option), I decided to wait in the padlock screen. After 3 hours the phone started.
I guess that the phone is decrypting some big file during startup. Indeed, some days before before this problem happens, I downloaded some big files via torrent (~2-4 GB video files).
I'll delete these files and make some tests to understand the source of this problem.
Have same issue after recent update, tried clearing cache and safe mode but didn't help, been on padlock for about 10 hours now, any solutions/experiences?
ps: on stock rom with stock recovery, no root or anything of that sort at all.
Have exactly the same issue..Please help
After recent update, tried clearing cache and safe mode but didn't help, been on padlock for about 10 hours now, any solutions/experiences?
ps: on stock rom with stock recovery, no root or anything of that sort at all.

Bootloop and firmware upgrade encountering problem I9505

Hi,
My galaxy S4 decided to poop itself yesterday. I was browsing my emails and the phone restarted by itself. . but then it kept restarting over and over again (Boot loop). The phone felt hot, so i took the battery out and left the phone for a while.
Once i put the battery back in, the phone kept boot looping. I managed to get it into safe mode and make sure all my photos were safe – I've just returned from a holiday in Hawaii, so this was very important to me.
After i was able to make sure photos were backed up on the computer, i cleared the cache partition and even did a hard reset. The phone kept boot looping. My phone now gets stuck on the "Samsung Galaxy S4 GT I9505" start up page. I read about issues with the power button, so even atempted to open the phone up and wiggle the power button around a bit by squeezing it with some tweezers. This made no difference. I've even swapped batteries and tried charging it.. this also doesn't work. Currently my phone has the "Samsung Galaxy S4 GT-I9505".
I have been on whirlpool forums and it was suggested that i reinstall the firmware through odin.. i did, but with great difficulty and many attempts. My phone was able to boot up and i was able to send one message and make one phone call before it went into bootloop again or just switches off and doesn't want to be switched back on again. When the phone was on, no sound was apparent when a phone call/text message came through for testing. I've retried dowloading the software on odin, but when i try to switch my phone on it says "firmware upgrade encountered an issue. Please select recovery mode in Kies and try again".
I've also tried putting the phone on the charger and no sound or green battery coloured animation comes up on the screen now.
Please somebody help
It was the latest stock firmware from sammobile.com that was flashed to the phone? Was the phone factory reset from stock recovery before booting the phone after fllashing with Odin?
As far as I know it was the latest unbranded firmware from sammobile.com.
A factory reset was one of the first things I did after starting the phone up in safe mode and trying to recover files.
The phone has never previously been tampered with. I've only ever upgraded the software through WiFi or Samsung kies. Using Odin was a learning experience for me.
Maybe the factory reset needs to be done from the recovery screen rather than from the ROM settings?
The factory reset was originally performed from the recovery screen. I can no longer get into recovery mode though. It only seems the phone wants to get into download mode
Have you tried flashing a ROM designed for a particular carrier in your country?
This is going to sound silly.. But I thought that's what I was doing when I went through Odin and got the firmware from sammobile.com
Which version of Odin and firmware was flashed?
What errors occurred during the flash process according to the Odin log?
Tried flashing with a pit file?

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