[Q] Tried downgrading unrooted i9500, now it's Soft Bricked - Galaxy S 4 Q&A, Help & Troubleshooting

I had received a small OTA update (about 26 MB) on my i9500 one day which upgraded it from MJ5 to MJ9, but I was facing severe battery issues since then. Like, it would take over 3 hours to charge completely and battery would completely drain in 7 hours even when device is idle and power saving mode is enabled, often it was discharging even when plugged. Then things got more serious, like it wouldn't even charge at all, battery was stuck at 1% for several hours. I somehow managed to get it to 27% and then decided to downgrade back to MJ5, using the firmware from SamMobile. I flashed it with Odin but then things went wrong, the process failed, and my device won't boot at all. All it says is,"Firmware upgrade encountered an issue. Please select recovery mode in Kies & try again". I tried again to flash it, but same results.
There was essential data in my device, which wasn't backed up. I want to recover my device without losing any data. That's the major priority. And a minor one is to try to resolve the battery issues.
I need the help urgently, anything anyone could tell me would be highly appreciated.

Related

[Q] Battery life on 9500 after OTA firmware upgrade

Hi,
I got S4 I9500 on 27th April and the battery was fine and was draining about 4-8 % during night and that seemed normal. Then I did an OTA firmware update to Android 4.2.2 XXUAMDE and since then the phone started draining around 15 % during nights and in comparison it drained a lot during standby. I decided to do a factory reset and now it seems fine. I read in several forum that OTA update messes up the battery life and we have to do a factory reset to fix that. Is there any way to avoid a factory restore every time I do an OTA update or is there any way to update it by connecting it to a PC like samsung KIES, does that prevent such issues ? I'm coming back to android after using apple for 2 years, so I'm kind of a noob
Thank you !
I have a 9505, my battery life reduced a lot too when I updated to ME2. Such a disappointment. I did a factory reset but it didn't fix my problem, though I had flashed back to stock firmware after playing with root.
Is there a out of the box rom without the update that I could try flashing?

SM-N910F Won't fast charge

Last few days my Note 4 wont chager in fast mode and in normal mode takes hours to charge, i allready perform a factory reset, bur the problem continues... someone knows whats wrong?
Download your firmware specific to your phone and flash it. Am certain that will work. I got a bug which couldn't go away with a factory reset so I had to download my phone's firmware a day or 2 ago and flashing has resolved it but it's still Lollipop 5.0.1 and I get the feeling this is not the end. I noticed that Lollipop 5.0.1 has some underlying bugs which I can't live with that haven't been ironed out and am currently making a run for Kitkat until all these issues are settled, or I just migrate to M.
First thing to try is another USB cable, then another charger - then another battery.

Bricked my Turbo 2 X1585

So after updating to the latest update last week, my phone suddenly was draining battery in less than an hour it seemed. It would suddenly jump when charging my large intervals that don't make any sense, seem too fast. Charge from 0 to 100% in less than an hour and then drain extremely quick again. After factory reset it was better, but I wanted to roll back to marshmallow, I tried it with RSD Lite and it fails on the 3rd file. After this the phone would boot fine, but when trying to shut down or factory reset. the phone is stuck in FastBoot. So I tried flashing the stock marshmallow via abp fastboot and now the phone is bootlooped.
can anybody help me flash the stock marshmalllow rom back onto this Turbo 2?
Ok nevermind I got it back to where I originally started with this: https://forum.xda-developers.com/dr...force-how-to-manually-flash-official-t3282077
still seems to be giving me weird sporatic issues with the battery though. I was at 75% battery and restarted the phone, when it booted back in it was at 45% all of a sudden. It keeps doing this randomly changing charging % by weird intervals for no apparent reason. It only started doing this after installing the latest update though.
Would be nice if I could find a way to roll it back to the original nougat update or even better the last Marshmallow version before nougat was deployed.
currently, there is no way to downgrade this phone as the bootloader is locked.

Auto shutdown when there's no app running on the background

Hello guys!
I'm facing a veeery weird issue with my ZB602KL.
I've left it charging overnight and when I woke up, it was turned off with 87% of battery.
Turned it on again without any troubles but now the phone just won't stay turned on when idle.
The only way I can leave it blocked without turning itself off is letting some background app running, such as a music player. Otherwise, the phone will go off 30 seconds after I press the lock button.
It doesn't turn off when screen is on or using any apps (no matter how long)... but as soon as I lock it, without anything running on the background, it goes off. :crying:
Any thoughts? Stock ROM, no root, tried factory reset, wiping cache, upgrading the firmwire again and nothing seems to work.
Thank you all for your attention!! :fingers-crossed::fingers-crossed::good::good:
Marcelo
Morning guys!
Yesterday I spent the phone battery until It reached 0% and left It charging It to 100% without interruptions... But It didn't work as well.
I'm definetely out of ideas
Downgrade the firmware if the problem started after ota update...(you need unlocked bootloader and root for that)..else take it to service center..
this problem happening to me
i've try factory reset and upgrade to android 10 but both still causing this sudden death
anyone has overcome this?
i'm about trying custom rom but still hoping to stick with stock rom
pranavkpr said:
Downgrade the firmware if the problem started after ota update...(you need unlocked bootloader and root for that)..else take it to service center..
Click to expand...
Click to collapse
this happen long after ota update and sadly, i've passed my warranty period

Zenfone 2 laser (ZE550KL) in bootloop need ASAP help

I own a Zenfone 2 laser and it is currently stuck in bootloop, I did some researche and learnd I have to flash it with a firmware. I tried updating firmware using sd card through revovery mode, update was finished but it did not worked), I tried found a (I think is) a raw firmware, flashed it by clicking the command inside the zip file, it was finished but it was phone is still stuck in bootloop. Lastly I flashed a raw firmware using Asus Flash Tool (AFT does not support stock rom from official site), the flashing was also a success but the phone is still in bootloop.
And there are times that when the phone is plugged in it opens but it always restarts into bootloop after a few minutes or when unplugged
Please help I don't have a phone to use right now and I don't have money to let a repair shop fix it.
Thank you!
hi.
i think I'm facing the same problem.
have you found a solution yet?
musooo said:
hi.
i think I'm facing the same problem.
have you found a solution yet?
Click to expand...
Click to collapse
not yet, but someone in the other forum said it might be the battery problem. I hope not.
I really suspect that to be a faulty battery issue. Let me help you with this. Once I hard bricked my ZE550kl (3 GB) by erasing aboot partition but thereafter I successfully recovered my device and installed AEX 6.7 custom rom. Some days later my device started rebooting itself and ended up in a state where it can't load beyond the boot animation. At first I thought it might be a software related issue hence I rolled back to the stock firmware. But unfortunately the problem persisted. Then I realized my battery is causing the issue and replaced old one with a new battery. My device finally booted up and once again fully functioning. So I suggest you to give it a try. Batteries wear out over time and may drop voltage suddenly from the requisite level and may cause restarting. One more thing to be cautious about is the replacement battery itself. Most of the third party battery for this device available in the market won't charge beyond 92% and may cause device shut down even before reaching 0% ( say at 30% ). So, please try to buy from a legit source or shop that you are familiar with.

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