[Q] SGS2 factory unlocked upgrade to ICS - General Questions and Answers

Hi there,
I've got a Samsung Galasy S2 factory unlocked that came shipped with GB 2.3.4. My question is, having bought that phone sim unlocked, can I flash any firmware available for that phone present in samfirmware? I'm fed up of waiting to get the official upgrade through kies, which is taking too long for spanish phones.
My main fears comes from flashing the phone with a non-free-sim firmware. Am I obbey to use, for flashing my phone, any Open Europe firmware if I want to keep having my phone sim unlocked? or could I in contrary flash it with any european firmware?
Thanks for your support.

Related

Flashing Stock firmware on Carrier Branded S6

Hey guys, just bought a Galaxy S6 after selling my HTC One (M9).
Turns out the device is carrier branded to O2-UK.
I've read a bunch of threads where the S6 won't boot after stock firmware has been flashed with Odin, is it only with some phones or with all phones?
I want to get rid of the O2 branding and boot animation, so I downloaded a PAKISTAN firmware (since thats where I live), for my S6. However have not flashed it yet because of the stories.
Should I go ahead and flash it or will my phone be stuck on the S6 Logo as well?
The device is on Android 5.0.2 with O2 firmware, the firmware I've downloaded has Pakistan CSC and is a 5.1.1 firmware.
Device is SM-G920F.
Should I go ahead with the flash or are there some extra steps to take before flashing?

unlocked want to flash firmware

Was on ATT, unlocked, now on T-Mobile. Phone is 3 yrs old, sketchy; shuts off randomly, has issues. Want to flash firmware, but Sammobile doesn't have 915a. Since it's unlocked and on t-mobile network, can I flash with t-mobile firmware? Can you put any carrier's rom on an unlocked phone? Sammobile has "usa" firmware with no carrier designation.
https://www.sammobile.com/firmwares/galaxy-note-edge/SM-N915R4/USC/
Thanks.
How did it go??
Same phone same problem also on Tmobile now... what did you do??
Use firmware uploaded by makki666
drivesavw said:
Same phone same problem also on Tmobile now... what did you do??
Click to expand...
Click to collapse
Did you find a solution? I flashed the firmware uploaded by makki666 found in another thread on updates for Note Edge from at&t. Right now am using 6.0.1 but may revert to basic 5.1 1 to get temporary root & get rid of bloatware (have not figured out what is worse, outdated OS or bloatware). If you found a better solution, please posr

What happens if unlocked phone is upgraded via Odin?

I have an unlocked phone on Marshmallow.
Will it become locked again if I upgrade it to Nougat using Odin and the official firmware?
algarues said:
I have an unlocked phone on Marshmallow.
Will it become locked again if I upgrade it to Nougat using Odin and the official firmware?
Click to expand...
Click to collapse
I just bought a used note 5 it was running marshmallow stock rom and i did upgrade from marshmallow to NOUGAT and still my phone is UNLOCKED.sim card+data+calls+sms all working nice and battrry life is amazing.
Model SM-N920T
i flashed this latest firmware below via odin v3.12
https://androidfilehost.com/?fid=1322778262903991333
Thank you for the firmware source.
Just to clarify, you flashed only that AP, no additional modem or bootloader files?
In addition, is T-mobile a cell phone provider also in Arab emirates? I did some search in internet and it seems the answer is no.
Would it be possible somehow to compare if your phone and mine have been unlocked the same way?
Thank you for any additional help
algarues said:
Thank you for the firmware source.
Just to clarify, you flashed only that AP, no additional modem or bootloader files?
In addition, is T-mobile a cell phone provider also in Arab emirates? I did some search in internet and it seems the answer is no.
Would it be possible somehow to compare if your phone and mine have been unlocked the same way?
Thank you for any additional help
Click to expand...
Click to collapse
No my service provider is Etisalat not Tmobile but i bought this phone on Craigslist and it was locked on Tmobile network so the owner sold me very very cheap he didn't know how to unlock it.
I bought it in 140$ and and it's brand new condition almost untouched.
i used a software in windows pc called "Z3X samsung tool pro v29.2" a cracked version to be honest to unlock this phone permanently.
After that i flashed nougat via odin just in AP tab and still unlocked.
I did not flash modem or bootloader separately because this firmware comes in full package Bootloader+Modem+CSC+System all you have to do is use AP tab and upload firmware then flash it.but remember you have to do factory reset from stock recovery immediately after flashing successfully otherwise it can get bootloop
Even though i try Tmobile sim unlock app that comes pre installed but it didn't worked cuz i don't have Tmobile sim card.
I am not sure your phone situation to be honest but since its UNLOCKED already so give it a nougat shot.

Should I flash my Galaxy S7 Verizon to stock firmware in West Africa?

Hello.
I have a Galaxy S7 that I got about 5 weeks ago. I paid to have it in the box but the person got a secondhand one. I am in West Africa but someway somehow I got a Verizon one that is unlocked for any carrier. Anyway I checked and some functions were not working. Private mode is not working, there's no software update option anywhere (I checked developer mode) and some features I've seen on YouTube are not even on the phone. I'm stuck on Android 6 and can't update so I made up my mind to flash a custom ROM but turns out Verizon's bootloader is locked which will make such a task impossible. Some days ago though, I found out that official Verizon ROMs can be flashed without unlocking the bootloader and this raised some questions which I want to ask here.
Here's the info at the about phone page
MODEL NUMBER - SM-G930V (there's Verizon on the back of the phone so I think this is true)
ANDROID VERSION - 6.0.1
BASEBAND VERSION - G930VVRU4API3
BUILD NUMBER - MMB29M.G930VVRU4API3
1. Can I really flash a stock Verizon ROM for the Galaxy S7 without bricking my phone and with a locked bootloader?
2. If I were to flash a stock Verizon ROM will the phone be locked to Verizon again? I'm asking this because this is the only phone I have and I'm supposed to use this for 2 years!
3. Should I flash the same baseband version or will another Verizon one work?
4. If all the above questions are true, where can I get official Verizon stock ROM for my device?
If you have any questions for me please let me know.
Thanks
TheMannyzaur said:
Hello.
I have a Galaxy S7 that I got about 5 weeks ago. I paid to have it in the box but the person got a secondhand one. I am in West Africa but someway somehow I got a Verizon one that is unlocked for any carrier. Anyway I checked and some functions were not working. Private mode is not working, there's no software update option anywhere (I checked developer mode) and some features I've seen on YouTube are not even on the phone. I'm stuck on Android 6 and can't update so I made up my mind to flash a custom ROM but turns out Verizon's bootloader is locked which will make such a task impossible. Some days ago though, I found out that official Verizon ROMs can be flashed without unlocking the bootloader and this raised some questions which I want to ask here.
Here's the info at the about phone page
MODEL NUMBER - SM-G930V (there's Verizon on the back of the phone so I think this is true)
ANDROID VERSION - 6.0.1
BASEBAND VERSION - G930VVRU4API3
BUILD NUMBER - MMB29M.G930VVRU4API3
1. Can I really flash a stock Verizon ROM for the Galaxy S7 without bricking my phone and with a locked bootloader?
2. If I were to flash a stock Verizon ROM will the phone be locked to Verizon again? I'm asking this because this is the only phone I have and I'm supposed to use this for 2 years!
3. Should I flash the same baseband version or will another Verizon one work?
4. If all the above questions are true, where can I get official Verizon stock ROM for my device?
If you have any questions for me please let me know.
Thanks
Click to expand...
Click to collapse
Yes, you can flash Verizon stock firmware without issues, as long as you are not trying to flash an older Verizon stock firmware than the version you already have. In other words, you can upgrade, but you can't downgrade.
As for flashing a west African firmware, Nn, Verizon devices have a locked bootloader, the locked bootloader will not allow you flash anything except Verizon stock firmware. Attempting to flash anything from another region or from a different device will only result in a soft-bricked or hard-bricked device. You can only flash the Verizon stock firmware for your specific model number.
Sent from my SM-S767VL using Tapatalk
Droidriven said:
Yes, you can flash Verizon stock firmware without issues, as long as you are not trying to flash an older Verizon stock firmware than the version you already have. In other words, you can upgrade, but you can't downgrade.
As for flashing a west African firmware, Nn, Verizon devices have a locked bootloader, the locked bootloader will not allow you flash anything except Verizon stock firmware. Attempting to flash anything from another region or from a different device will only result in a soft-bricked or hard-bricked device. You can only flash the Verizon stock firmware for your specific model number.
Sent from my SM-S767VL using Tapatalk
Click to expand...
Click to collapse
Hi! Thanks for replying! So where can I get a Verizon stock firmware that is an upgrade of mine and what region should I download from? Also which version of ODIN should I use?
Thank you very much!

whats best way to flash unbranded SM-G715U1 to U for vzw?

So both my phone and vzw branded phone are same model, and android 11 firmware is out for verizon and my phone received the G715U1UEU7BUC3 ota 11. Is the latest Odin software and verizon G715USQU7BUC1 firmware what i need to get it done?
Also, do i need to do the full flash or can i get by with just one file that includes all the vzw bloatware. From what ive read i can get by with flashing just the userdata file. Once complete ive also read i need to do a factory reset and that it can be done i DL mode. Is that true? Finally can i leave my sim in for this or should it be out
?
?
Anybody??
Not even a response from Europe where they must hand these xcover pro's out with every gas tank fillup.
I have the latest version of odin installed and downloaded the verizon ota firmware G715USQU7BUC1 and am ready to give it a shot. I would just like a little confirmation im on the right track. Bootloader versions are the same. (bootloader is still locked) Even a grunt would do..........

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