[URGENT] Will I lose SIM unlock if I upgrade ROM? - Touch Pro, Fuze General

Just got a HTC Fuze P4600, and I unlocked it using an official unlock code I got for free by calling AT&T. It is now running T-Mobile.
The ROM version thats on it is like 1.x, and I wanna upgrade using the official HTC ROM update from their website.
MY QUESTION is if I upgrade my ROM, will I lose my SIM unlock, because I dont have the code.
Thanks.

Yes it may effect.
However you can flash any custom Rom.
In case if you ever get SIM lock back on phone just keep unlock with you & flash official Rom from T-mobile and use unlock code again.

Related

[Q] will I be able to get OTA updates if phone is unlocked ?

If I unlock my sensation and use it on a non t Mobile network,will I be able to get the OTA update htc is pushing out in august to unlock the bootloader?
Yes you will still be able to. If your phone is branded to t-mobile it the update might take a bit longer as T-Mobile need to approve the update.
Sent from my HTC Incredible S using XDA App
If you flashed cwm recovery,you are unable to update by ota.And i think,if you have unlocked your phone,why not use custom roms,they are much better than official roms.If you use custom roms,ota is not necessary at all.
I thought you can't flash custom roms with a locked bootloader?
i think he is talking about sim unlocking?
bob7770699 said:
I thought you can't flash custom roms with a locked bootloader?
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He was asking about sim unlock, not s-off
Yes, sorry should have clarified , I meant sim unlock.
My SIM unlocked Bell unit (on Rogers) received the OTA update last week no problem!

[Q] unlocking device

guys i have a question. tmobile emailed me an unlocking code for my g2x and i was wonder if the unlocking will work with any rom?
or anytime i flash a rom i need to put the code on the phone i dont know!
gypsy214 said:
guys i have a question. tmobile emailed me an unlocking code for my g2x and i was wonder if the unlocking will work with any rom?
or anytime i flash a rom i need to put the code on the phone i dont know!
Click to expand...
Click to collapse
It will work with any rom and it is permanent.
Sent from my Calculator with Android.
Unlock the phone by putting in a non T-Mobile sim and turning on the phone. The code entry box will appear. Unlock it now before flashing a custom roms. Most customs roms don't have the necessary code to perform the unlock. But once you have unlocked it you never have to do it again no matter what rom you flash.

Unlocking Sim while on custom rom?

I believe I got the unlock code for my One S while it was stock/rooted, but Im on a custom rom and was wanting to switch carriers to an ATT MNVO.
Can I just pop the new sim in and it will prompt me for the sim unlock code on the custom rom Im running right now? Its with 2.16 hboot using the Viper Rom / Sense 5. Or will I need to do a complete reset of the phone to bring it back to stock first?
Thanks
As far as I know, it's best to unlock your device on a stock rom. Once it's unlocked you won't need to do it a second time since it's permanent.
I had some trouble unlocking my device on different custom roms, just as i went back to a rooted stock rom the unlock worked.
Cheers Finn
Sent from my One S using XDA Premium 4 mobile app

ATT sim lock problem

Actually have ATT A9(CID is BS-US001) with unlocked bootloader , root and s-off. after flashing unlocked ROM 1.57.617.52 still ask me for unlock code when i insert anouther sim. with ATT sim work properly. never see that before. Need your ideas. in getprop [gsm.network.type]: [Unknown]. so may be need to cnange gsm.version.baseband????
Thank in advise!
You have to get an unlock code from AT&T and unlock it yourself. Flashing a rom isn't going to sim unlock your phone.
creusset said:
You have to get an unlock code from AT&T and unlock it yourself. Flashing a rom isn't going to sim unlock your phone.
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Is unlocked ROM means unlocked GSM like Google play edition for M7? wich one ROM give me unlocked (sim free) phone?
UAALEX said:
Is unlocked ROM means unlocked GSM like Google play edition for M7? wich one ROM give me unlocked (sim free) phone?
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Click to collapse
There's no rom that unlocks your phone. Call att and request an unlock code.
creusset said:
There's no rom that unlocks your phone. Call att and request an unlock code.
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Click to collapse
i have an unlock code but...... the phone not accepted it. may be need brick it totally and then flash it. i am s-off.
Ahhh I thought you were trying to unlock the phone by flashing a rom lol. All you need to do is go back to any stock rom you want and then put the non ATT Sim in, use the unlock code, and then flash whatever other rom you want

Unlocking bootloader on ebay purchased TMobile 7 Pro

Thinking of buying one of these and want to clarify the process of unlocking the bootloader. From the ebay seller he says it is a T-Mobile phone but is sim unlocked already. He says I will have to contact oneplus to get the bootloader unlock code/token. I don't really want to wait the forty days or whatever I heard it was but it's ok as long as I can definitely get it unlocked eventually and won't be stuck for some reason with a locked bootloader. Thanks for any info you can provide.
https://forum.xda-developers.com/oneplus-7-pro/help/how-to-convert-tmobile-op7-to-t3935947
I've ran across two of your posts asking the same question. I had done the same thing as you. I bought an eBay sim unlocked op7p. At first I flashed the international firmware to just bypass the whole tmobile bootloader unlock. It worked in the sense that I was able to unlock the bootloader, however I had no service and the phone would not detect my sim (Cricket). I tried another sim with the same results. I had to use the msm tool and flash back to tmobile stock firmware in order for it to work with my sim.
I sent in my request for an unlock token and received it in 7 days. I think the 40 days is only for brand new phones. I would submit the unlock token request and go that route. YMMV, you may very well be able to flash the international software and just bypass it. I didn't have that luck. The 7 day wait wasn't so bad. Hope this helps.
devastatorx said:
I've ran across two of your posts asking the same question. I had done the same thing as you. I bought an eBay sim unlocked op7p. At first I flashed the international firmware to just bypass the whole tmobile bootloader unlock. It worked in the sense that I was able to unlock the bootloader, however I had no service and the phone would not detect my sim (Cricket). I tried another sim with the same results. I had to use the msm tool and flash back to tmobile stock firmware in order for it to work with my sim.
I sent in my request for an unlock token and received it in 7 days. I think the 40 days is only for brand new phones. I would submit the unlock token request and go that route. YMMV, you may very well be able to flash the international software and just bypass it. I didn't have that luck. The 7 day wait wasn't so bad. Hope this helps.
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That's good to know that I can get the unlock token if needed. So TMobile doesn't care who you are or that you don't have a T-Mobile account or live in US obviously then?
Reechings said:
That's good to know that I can get the unlock token if needed. So TMobile doesn't care who you are or that you don't have a T-Mobile account or live in US obviously then?
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Click to collapse
The unlock code comes from OnePlus. I only had to wait the week and the received an email with a link to download the unlock_code.bin file. To answer your question, not to my knowledge.
devastatorx said:
I've ran across two of your posts asking the same question. I had done the same thing as you. I bought an eBay sim unlocked op7p. At first I flashed the international firmware to just bypass the whole tmobile bootloader unlock. It worked in the sense that I was able to unlock the bootloader, however I had no service and the phone would not detect my sim (Cricket). I tried another sim with the same results. I had to use the msm tool and flash back to tmobile stock firmware in order for it to work with my sim.
I sent in my request for an unlock token and received it in 7 days. I think the 40 days is only for brand new phones. I would submit the unlock token request and go that route. YMMV, you may very well be able to flash the international software and just bypass it. I didn't have that luck. The 7 day wait wasn't so bad. Hope this helps.
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Click to collapse
I think I may be in the same boat. After fighting with msm I finally got it to flash the international firmware but nowjiy doesn't detect my sim. So you went back to Tmobile software and got the token to unlock but once you did that did you switch back to international or custom ROMs?
Duplicate post
Reechings said:
I think I may be in the same boat. After fighting with msm I finally got it to flash the international firmware but nowjiy doesn't detect my sim. So you went back to Tmobile software and got the token to unlock but once you did that did you switch back to international or custom ROMs?
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Click to collapse
I have not flashed back to international because I couldn't get the phone to detect my sim even after updating the international firmware.
I would however recommend that once you flash back to TMobile (using msm) that you do the OTA (settings>system>check for updates)
Currently I'm running unlocked and rooted via magisk. I'd like to flash a custom rom (looking at resurrection) but they say to flash the international rom to both slots first (via recovery like twrp) and I'm not sure if that would cause the sim issue again. I haven't had time to ask about it (if I can flash straight from tmo stock rooted to a custom rom like resurrection). So unfortunately I don't have the best answer there. You may ask around in some of the custom rom threads about just flashing straight from the TMobile stock firmware with unlocked bootloader. If you happen to find out an answer, please pm me and let me know.
devastatorx said:
I have not flashed back to international because I couldn't get the phone to detect my sim even after updating the international firmware.
I would however recommend that once you flash back to TMobile (using msm) that you do the OTA (settings>system>check for updates)
Currently I'm running unlocked and rooted via magisk. I'd like to flash a custom rom (looking at resurrection) but they say to flash the international rom to both slots first (via recovery like twrp) and I'm not sure if that would cause the sim issue again. I haven't had time to ask about it (if I can flash straight from tmo stock rooted to a custom rom like resurrection). So unfortunately I don't have the best answer there. You may ask around in some of the custom rom threads about just flashing straight from the TMobile stock firmware with unlocked bootloader. If you happen to find out an answer, please pm me and let me know.
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Click to collapse
Actually I was mistaken. Once I updated the international rom to Android Q my sim started working again and now I am on Bliss and sim is still working. Not sure what is going on with your sim.

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