Sim locked after firmware change g530h - Galaxy Grand Prime Q&A, Help & Troubleshooting

So, I changed the russian XXU lollipop firmware back to my region firmware (Chile) and after a normal boot up, the phone pop up a notification that said "invalid sim" and asked for a unlock code, as if it was a locked phone.
I tried going back to russian lollipop with the same firmware I used before and the problem was still there.
Anyone knows what can I do to fix it?
Please Help

Related

network unlock or modem swap i337m on 5.0.1

Hey people, I have an issue going on here.
I was going to unlock, but decided to reflash firmware and change the csc from rogers over to bell.
Kies recognizes the phone now as being a 'bell' phone, and have done an update just to confirm it but it still will not accept a bell sim. Every time I have inserted a bell sim it requests the 4 digit unlock code. The sim works just fine in my S3 and another bell S4, so that is not the problem.
All settings in the phone also show it to be 'bell', home screen and all, so the csc did take.
All the modems/firmware on sammobile are multi-csc, as i have tried to just flash the modem alone after I extracted it.
I could care less about being truly carrier free, as I am locked into a bell agreement through work.
Any suggestions on this, or do i have to purchase a code? I assume its locked now so I cannot downgrade to my understanding to a lower modem to use the service menu to unlock.
Thanks for the input.
I've flashed from a Bell 4.4.2 to Telus 5.01 without issue and the phone will remain sim-locked. The only difference I have seen between the Bell, Telus, and Rogers ROM are the carrier apps included with each ROM.
The sim unlock code is 8 digits long.
You should be able to downgrade the i337m's 5.01 stock ROM to a i337m 4.4.2 stock ROM. Then install the 4.2.2 modem, root the phone, run region unlock app, re-flash stock 5.01, and the phone will be sim unlocked. Doing this will trip the knox counter to 1 and void any remaining warranty.
I tried to downgrade, but it didnt take. I will try again. I know there was a discussion on booting the phone and not signing into google then reflash again. Is this needed?
Thanks for the reply.
Well, I got it to work this time. Much appreciated
You tried to flash a stock 4.4.2 rom from sammobile.com? Were there errors in Odin?

What happens if I flashed another country firmware??

Suppose in the case I bricked my phone and I don't know the baseband version of it. Now what is the option to recover? Flash stock firmware via Odin but don't know the baseband??? What will happens if I flash another country stock firmware?? Will the phone hard brick?? Or it will work fine?? Thank you
The worst case is that your sim card will not work with that software. This is only if your phone is carrier locked.
If it is unlocked, or neverlocked as others put it, then you can flash any firmware you like, as long as it is for your respective phone model.
GDReaper said:
The worst case is that your sim card will not work with that software. This is only if your phone is carrier locked.
If it is unlocked, or neverlocked as others put it, then you can flash any firmware you like, as long as it is for your respective phone model.
Click to expand...
Click to collapse
Thank you sir, as u r always helpful. ??
But wait. Suppose I got phone as gift from my relative who live in UK and I live in Nepal. Which country firmware should I flash?? UK or Nepal??
Athakuri700 said:
But wait. Suppose I got phone as gift from my relative who live in UK and I live in Nepal. Which country firmware should I flash?? UK or Nepal??
Click to expand...
Click to collapse
Make sure that this phone isn't locked to O2 or any UK carrier.
Sent from my ASUS_Z00AD
Athakuri700 said:
But wait. Suppose I got phone as gift from my relative who live in UK and I live in Nepal. Which country firmware should I flash?? UK or Nepal??
Click to expand...
Click to collapse
You should flash Nepal firmware then. It would give you better (more match) CSC code. The CSC (Consumer Software Customization) code contains the info about software packages specific to a particular region, carrier branding and also APN (Access Point Name) settings for data connection.
In my case, my S4 i9500 was made in Vietnam and when I received it, it had a Thailand firmware on it. It is a network unlocked phone. I live in USA. The first lollipop firmware came out was for Russia. So I flahsed the Russian firmware. My CSC showed that it is a russian phone. I used that phone on AT&T network that available in USA, China and Korea, and I had no problem.
Nothing will happen.
@sway8966
Are you really to suggest him to flash Nepali firmware on UK phone? I'll unlock it (the carrier-lock) first and then flash other countries' firmware if need.
Sent from my ASUS_Z00AD
Sorry to bump this up but im having problems with my s6 edge (Maybe because of this).
I recently acquired a phone from a relative from UK. The OS is android 7.0 and the carrier is three.co.uk (H3G), we have reset the phone to its factory settings and accidentally didnt noticed that it do auto update on the OS, then this bootloops starts to occur.
The phone isnt network-locked because the phone can receive signals, messages and phone calls on local sim.
Now upon browsing around SamMobile, There is an available Firmware for this mobile and even the firmware which is available to Philippines but only ver. 6.0.1
Is this possible to use the PH one or still i go to UK(h3g)?
help please
once i take the firmware from other countries and then i install to my phone,
does my phone will going to operate that firmware even if it come from another country
because i tried to find firmware according to my respective country unfortunately i missed it.
so please i need your assistance ..please

Sprint Note 4 got network locked after updating to 6.0.1

I was using unlocked sprint note 4 i.e., 910P in India with lollipop 5.1.1 firmware. I downloaded and installed stock N910PVPU4DPC1 6.0.1 firmware and now my mobile doesn't have any signal. I selected GSM/UMTS mode in network and manually search for the network but its not working. Any way to fix this??
Thank you.
The current csc code is XAS and as far as I remember in 5.1.1 formware I was using it was CHN. So will that have any impact??
Atleast somebody please tell me that how will I know that whether the problem is carrier locked or something else. Because when I insert the SIM it won't say anything like invalid SIM or SIM card rejected. I searched manually for the signal and it just keeps saying " registering on network".

Strange boot sequence and unlock problem

I have a second hand note 3 n9005 it is verry Co fusing as on boot before rom. Use to flash up o2 however it's locked to ee I recently paid for aim unlock and have to return to store as been a problem
Why would it show o2 bloat Ware but be locked to ee?
A friend said flashing new modem may help is this possible or no reply way to network unlock in UK?
Any help is much appreciated thank you
What is the model number on download mode?
The model is showing as sm-n9005
Thanks
Carriers will use a custom csc file on a stock rom which means there could be multiple carriers with the same phone and different csc files. For instance, I have a bell phone and loaded Rogers firmware on the phone but the phone remains locked to bell.

which stock firmware version do i need to install?

my friend forgot his pattern and doesnt have his email anymore, so i need to install stock firmware again.
His phone model is sm-j500h/ds but on the samsung firmware page the closest thing to that model is the sm-j500h, which is the non dual sim j5 i guess.
Do i need to install that one and itl work? or should i find a 3rd party website with a stockfirmware for the dual sim model of the phone.
Also what firmware region do i need to install, or does it not matter?
thanks
DSMNCIHAGT said:
my friend forgot his pattern and doesnt have his email anymore, so i need to install stock firmware again.
His phone model is sm-j500h/ds but on the samsung firmware page the closest thing to that model is the sm-j500h, which is the non dual sim j5 i guess.
Do i need to install that one and itl work? or should i find a 3rd party website with a stockfirmware for the dual sim model of the phone.
Also what firmware region do i need to install, or does it not matter?
thanks
Click to expand...
Click to collapse
All j500h are dual Sim so that is the right firmware.
Flashing stock wont help though as the passcode will remain.
Nothing you can do unless you have OEM unlock and USB debugging enabled in developer options

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