SM-A300M from lollipop to kitkat - Galaxy A3, A5, A7, A8, A9 Q&A, Help & Troubleshoot

Hello, i have a new a3, it have it lollipop but that os i really dont like it so i want to downgrade to kitkat.
What i need to know before doing anything? For not brick my phone...
Bootloader: A300MUBU1BOI1
Works fine with that room in my country. (Bolivia)
Thx!

k1priest said:
Hello, i have a new a3, it have it lollipop but that os i really dont like it so i want to downgrade to kitkat.
What i need to know before doing anything? For not brick my phone...
Bootloader: A300MUBU1BOI1
Works fine with that room in my country. (Bolivia)
Thx!
Click to expand...
Click to collapse
Follow at your own risk:
http://forum.xda-developers.com/sam...utorial-downgrade-lollipop-to-kitkat-t3311401
Edit: I checked the site, but i see there is no 4File firmware for your device. Sorry about that
---------- Post added at 12:46 PM ---------- Previous post was at 12:23 PM ----------
---------- Post added at 01:37 PM ---------- Previous post was at 12:46 PM ----------
I have read about an alternative method.
1. Download the stock 4.4.4 Samsung firmware from sammobile.
2. Boot into recovery mode and wipe date, cache / factory reset.
3. Boot into download mode, and connect phone to pc.
4. Make sure auto reboot, f. Reset time and phone bootloader mode is ticked.
5. Press start, and pray the phone boots.
6. Repeat the above steps.
I can't gaurentee that this method works.

Hello again, i found sm-a300m on sammobile but i cant post links here. It seems thats my device.
In case of doing some damage can i go back to lollipop with some backups?
Thx for response!
EDIT: the same firmware (lollipop) is on tsar3000, can i trust this site?

Don't downgrade. Nearly everyone that has tried downgrading the a3 had hard bricked their device.

Thats really too bad... well, i hope a update for lollipop for fix this issues.
Thx a lot, and i decided not downgrade.
You can close now this thread.

Related

[Q] gt-i9507 soft brick help

hi i bricked my gt-i9507 hk/aus variant buy accidently flashing a incorect pit file and now i cant install stock roms. i can get into download mode and can still flash twrp as a recovery but wont flash stock keeps failing and ive tried all versions for my phone available in stock, ive managed to flash cm12 final but im guessing efs is corrupted because not displaying imei now is null any help would be greatly appreciated
Similar
Hi all, have been having similar problems. GT-i9507 is soft bricked, but cannot escape bootloop even after wiping data, cache, and deldalvik cache with Philz Touch 6. Bricked after trying to flash wicked rom, have tried imperial as well since, both are i9505 roms, but apparently other users had had luck with them on the i9507? In any case, I can't see why I wouldn't be able to wipe the thing and boot up with the stock kernel, so I am currently grabbing a i9507 kernel and will get back with results tomorrow (long DL).
I am grabbing this kernel: pr31.rapidgator.net//?r=download/index&session_id=2oZ1mbKDmSSIDxiRcLmdXx1IQGO8CdPI
Samsung also released the i9507 kernel open source somewhere here: opensource.samsung.com/reception/receptionSub.do?method=sub&sub=F&searchValue=i9507
Might be worth looking into. Will also probably try to flash cyanogen from: download.cyanogenmod.org/?device=jfltexx
because there have been reports of that working, and there is an explicit i9507 release on their site.
---------- Post added at 01:12 PM ---------- Previous post was at 01:07 PM ----------
In regards to previous post, just flashed cyanogen from the supplied link (it's an https, would have linked it properly, but I need 10 posts first), and currently booted first time. Looks promising, but still doesn't mean that I can have the same level of dank kernel as i9505 users.
---------- Post added at 01:30 PM ---------- Previous post was at 01:12 PM ----------
Might be better off grabbing the stock i9507 here:
sammobile.com/firmwares/database/GT-I9507/

Go back to JellyBean from KitKat

Hi All,
Recently I used Odin to flash a KitKat rom downloaded from sammobile to my I9300I. It doesn't have major bugs, except camera failing from time to time (never happened on 4.3 JellyBean) and this google thing nothing can't be written to sd card.
So I decided to flash back my stock 4.3 JellyBean rom.
I'm not sure if that can be done so I wanted to ask more experienced people is it possible to go back from 4.4.4 to 4.3 without concequences to the phone.
Thanks in advance.
I am back to 4.3 now
---------- Post added at 05:04 PM ---------- Previous post was at 05:03 PM ----------
I9300dduang1
About phone

a500w stock recovery/firmware

Hi all, this is my first post on XDA. I was wondering if anyone had the stock recovery/firmware of the galaxy a5 a500w model (it kinda just came out in canada). I need this asap to flash it back to the og firmware.
Kind regards, benz.
 a500w stock recovery/firmware
I cant find any info or help on this subject anywhere on the net. . My a5 sm-a500w is stuck in odin mode. I would usually just use keis or odin. But, there is no firmware, custom roms, or even info on what other firmware might work to unbrick this stupid Canadian phone.
The phone is screwed with out some sort compatable rom..
PLEASE HELP!!!!! ITS NOT LIKE ITS A SUPER NEW PHONE ANYMORE.
THANK YOU. PLEASE MESSAGE ME IF U HAVE ANY IDEAS OR BREAKS
Try Samsung Smart Switch software. I couldnt find any info on that model
---------- Post added at 09:01 AM ---------- Previous post was at 08:57 AM ----------
http://forum.gsmhosting.com/vbb/f77...shing-updating-amp-manage-user-datas-1986895/
jnvdh06 said:
Try Samsung Smart Switch software. I couldnt find any info on that model
---------- Post added at 09:01 AM ---------- Previous post was at 08:57 AM ----------
http://forum.gsmhosting.com/vbb/f77...shing-updating-amp-manage-user-datas-1986895/
Click to expand...
Click to collapse
Not supported. Any other way to recover this device?

T-Mobile GSM Unlock for Galaxy Tab A (SM-T357T)

Hi, I have Galaxy Tab A tablet locked with t-mobile.
1. Is there a way to unlock it without root?
2. If it only can be unlocked with root then what is the simplest way to root?
3. What unlock way is the best?
Details:
Android: 5.0.2
Kernel: 3.10.49-5379129
Thank you in advance
Hi,
You can also use a third party unlocking service for this, which will change the status of your tablet in T-Mobile's database.
---------- Post added at 09:26 AM ---------- Previous post was at 09:24 AM ----------
Hi there,
See if any of these instructions work for your phoneMod Edit
First post in a forum ever...
Funny thing is that i just rooted my Tab A (T357T) from scratch not knowing a hing about rooting.
Pretty sure that you can not unlock without root; I did a lot of research on this.
That being said, I installed a custom recovery (TWRP v2.8.7) via Odin v3.12.3 (link can be found elsewhere on this website) first in order to flash Super SU and thereby root my Tab A. Upon exit from the recovery booter, TWRP should ask if you wish to root; program will then take care of it for you. You will only need to verify and handshake on the system side via the Super SU app found in the play store. ROOT AWAY...
Root isnt unlock.
---------- Post added at 05:15 PM ---------- Previous post was at 05:14 PM ----------
I got t555 n cant find out how unlock it i have root already lol

Samsung S5 (SM-G900F) stopped loading

Hi,
My gf's phone stopped loading yesterday (stuck at the SAMSUNG logo), so I've tried to factory-reset it via recovery menu. Unfortunately, this didn't help, so I've decided that I need to re-flash the system. After some search I found https://www.kingoapp.com/root-tutorials/how-to-flash-samsung-stock-rom-via-odin.htm and tried to follow it. After checking the sticker behind the battery, I've learned that the model is SM-G900F. Unfortunately I wasn't sure what ROM was installed on the phone before and couldn't find any Ukrainian ROM, which is where the phone was bought originally. In the end, I decided to try installing latest ROM for Germany O2, since this is the operator that my gf uses now.
Unfortunately, Odin refused installing that image with an error "FAIL! (Auth)". After some further searching, I've noticed that when the phone is in download mode, it shows model name SM-G900V. I have no idea why and the ROM that was there before was clearly non-Verizon. Still, having no other option, I've downloaded Verizon ROM and it installed successfully. Luckily the phone has booted, but as expected, it wouldn't connect to any other network than Verizon, which is kinda useless to me given that we live in Germany and use O2. Now I wonder if it's possible to somehow root the phone, install custom recovery and flash that German O2 ROM?
The device is running Android 6.0.1 and kernel 3.4.0. How do I root it? How do I install custom recovery? Which one would you recommend?
Thanks,
Sergiy
In order to root it and install custom recovery you need to follow this guide
https://forum.xda-developers.com/tmobile-galaxy-s5/development/root-method-2018-updated-stock-firmware-t3781426
---------- Post added at 10:24 PM ---------- Previous post was at 10:21 PM ----------
I would recommend twrp and magisk
---------- Post added at 10:28 PM ---------- Previous post was at 10:24 PM ----------
Also you need to get the correct twrp for your phone from
https://twrp.me/samsung/samsunggalaxys5qualcomm.html
---------- Post added at 10:37 PM ---------- Previous post was at 10:28 PM ----------
After rooting and custom recovery installation you need to decide what ROM you want on this phone ,you can install any ROM that supports sm g900f or g900v or klte (that's your device nickname)
I am on aex and it works good for me so you can try it https://forum.xda-developers.com/galaxy-s5/unified-development/rom-aospextended-rom-v5-4-t3779910
---------- Post added at 10:47 PM ---------- Previous post was at 10:37 PM ----------
Follow the installation instructions from the Aex link and you should be good to go
If you need google apps and play store install gapps zip the link for that is also in the aex post hope it all works out for you ,if you need any help just ask
rryk said:
Now I wonder if it's possible to somehow root the phone, install custom recovery and flash that German O2 ROM?
The device is running Android 6.0.1 and kernel 3.4.0. How do I root it? How do I install custom recovery? Which one would you recommend?
Thanks,
Sergiy
Click to expand...
Click to collapse
Seems, you can read russian.
You may like to follow this my guide to flash SM-G900V with an international 6.0.1 ROM.
I think, you can even use VIA (O2) CSC.
P.S. Please, pay attention to:
1. The first boot after factory reset may take 12-15 min (but not more than 20), so be patient. This was the problem, I guess.
2. Read the QA section in my guide to find the answers to your questions about root and custom recovery. And feel free to ask questions (here or there).
bbsc said:
Seems, you can read russian.
You may like to follow this my guide to flash SM-G900V with an international 6.0.1 ROM.
I think, you can even use VIA (O2) CSC.
P.S. Please, pay attention to:
1. The first boot after factory reset may take 12-15 min (but not more than 20), so be patient. This was the problem, I guess.
2. Read the QA section in my guide to find the answers to your questions about root and custom recovery. And feel free to ask questions (here or there).
Click to expand...
Click to collapse
Thanks a lot. Indeed, I have probably not waited long enough for the first boot. The instructions you linked, worked! My gf is happy to have her phone back.
rryk said:
Thanks a lot. Indeed, I have probably not waited long enough for the first boot. The instructions you linked, worked! My gf is happy to have her phone back.
Click to expand...
Click to collapse
You're welcome.
Радий був допомогти.
And note for the next time: it's a good idea to try clearing cache and safe boot before performing a factory reset

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