yashsingh1/xdaforums huggingface dataset:
[OnePlus 7T Guides, News, & Discussion] 3's&7's:
The op explains what to do step by step for -255... Message him with the info he needs. Same instructions too in the first post once he messages you back it was successful.

---------- Post added at 08:00 PM ---------- Previous post was at 07:57 PM ----------

ERROR CODE = 255? See below..

Clear your network settings. Settings > System > Reset Options > Reset WiFi, Mobile, & Bluetooth.

Power cycle your device (turn it off and on).

Still doesn't work? PM me your phone number.

I may request you to simply direct message TMobileHelp on Twitter to whitelist your IMEI.

"Me" = the OP (not me the one who is helping you now lol :laugh:)
[OnePlus 7T Guides, News, & Discussion] Bowser214:
Yeah it's just a waiting game now honestly for me. Have the error now irs just a waiting game not going to blow up his dms
[OnePlus 7T Guides, News, & Discussion] vtdrxx:
yes me too im sure there are alot of requested.
[OnePlus 7T Guides, News, & Discussion] darklimits:
unlocked within 24 hours. Thanks [MENTION=6958558]mobbdeep[/MENTION].
[OnePlus 7T Guides, News, & Discussion] engloa:
Thread re opened at OP request
[OnePlus 7T Guides, News, & Discussion] cali310:
worked for me too! thanks a lot!
[OnePlus 7T Guides, News, & Discussion] catch_me86:
Sir plz unlock my device
[OnePlus 7T Guides, News, & Discussion] Brad Thornhill:
Worked for me! Anyone having their phone unlocked, donate! It is well worth it... I have always had fast turn around (couple days) and has always worked..
[OnePlus 7T Guides, News, & Discussion] fields_g:
Just to remind people... OP cannot do this to T-mobile banded devices purchased directly from OnePlus (I made that mistake).

But there is a solution. https://xdaforums.com/showpost.php?p=83065095&postcount=292

Work with T-Mobile. It is not a SIM unlock, but an OEM unlock. They also need to add your device to their inventory. I was able to make this request through 611 (representative needed to fill out a tech ticket that took a few days to process). Once this is done, It will unlock through the SIM unlock app.
[OnePlus 7T Guides, News, & Discussion] deramerikaner:
Worked flawlessly! Make sure you donate to show your thanks.
[OnePlus 7T Guides, News, & Discussion] Short_Wiz:
Hey, I've sent my IMEI in but no text or reply from the gentleman, I'm still waiting for sure.
[OnePlus 7T Guides, News, & Discussion] deramerikaner:
Hey ...

You may want to check out the instructions on Page 1 first...
[OnePlus 7T Guides, News, & Discussion] jazzdglass:
Will this work with international users?
[OnePlus 7T Guides, News, & Discussion] luisqroo:
Theres any way this would work if i bought from a 3rd party a t Mobile variant?, I don't Know the last name of the owner
[OnePlus 7T Guides, News, & Discussion] Delta105RUS:
I can't send a PM. It says that the user has chosen to not receive PMs. Did I miss something?
[OnePlus 7T Guides, News, & Discussion] Josh McGrath:
It has to be in use on YOUR account for at least 3 days and obviously can't be blocked IMEI otherwise you should be good.

See the first post for info needed
[OnePlus 7T Guides, News, & Discussion] KI_YE:
Plz unlock imei 990013831154401

Plz unlock imei 990013831154401
[OnePlus 7T Guides, News, & Discussion] Josh McGrath:
Learn how to read. Delete your personal info immediately and send it in a PM like the OP specifically instructs you to do.
[OnePlus 7T Guides, News, & Discussion] Delta105RUS:
I couldn't PM him...
[OnePlus 7T Guides, News, & Discussion] Josh McGrath:
At least you were smart enough to not post your private IMEI. That guy's IMEI is probably being put on a blocked OP8 right now

I wonder if when unlocking the thread they forgot to unlock the PMs. [MENTION=6958558]mobbdeep[/MENTION]
[OnePlus 7T Guides, News, & Discussion] Short_Wiz:
Yes I did
[OnePlus 7T Guides, News, & Discussion] namyboyz44:
PM sent. Thanks !
[OnePlus 7T Guides, News, & Discussion] TLzhp:
Were you able to PM the OP? I don't have the "send private message" option to him.
[OnePlus 7T Guides, News, & Discussion] Delta105RUS:
Where did you send the PM? I couldn't PM him.
[OnePlus 7T Guides, News, & Discussion] Short_Wiz:
Hey I send in my IMEI and no reply or anything can you help??
[OnePlus 7T Guides, News, & Discussion] Lossyx:
Casually just posting your IMEI like that...good thinking
[OnePlus 7T Guides, News, & Discussion] Delta105RUS:
I suppose i'm going to go back on hold with OnePlus to resolve this one. T-Mobile says that OnePlus has to unlock it. OnePlus told them that they're showing that I bought it from T-Mobile (no i didn't). I bought the T-Mobile 7t after seeing this thread. Bad luck, I guess. Hopefully Op will have time to come back.

To others having this issue: Chill. Op is doing something for free. All we can do is wait and hope.
[OnePlus 7T Guides, News, & Discussion] mobbdeep:
I am disabling my PM's when I'm not doing the unlock services at night. This is to help prevent me from getting backed up again. All requests get caught up then my PM's open again. Keep in mind this is a one man army and I have a work life outside of this. I promise all requests will get done as long as you meet the requirements. For now, all requests have been caught up.
[OnePlus 7T Guides, News, & Discussion] Delta105RUS:
That makes sense. Sorry for my confusion. Thank you.
[OnePlus 7T Guides, News, & Discussion] jrg123:
Thank you mobbdeep! Now to get the beta so I can fix the adaptive brightness... Look for a gift in your PayPal.
[OnePlus 7T Guides, News, & Discussion] GBFAST:
Thank you mobbdeep, it worked! Donation sent.
[OnePlus 7T Guides, News, & Discussion] fields_g:
I expect this would only work if you had a T-Mobile sim and active account.
[OnePlus 7T Guides, News, & Discussion] jazzdglass:
Any 3rd party unlocker you know of? Paid offcourse
[OnePlus 7T Guides, News, & Discussion] Grendl:
Two questions:

1. You say "can be bought 3rd party but must be t-mobile version and on the t-mobile network" but later you say "The device MUST be one purchased from T-Mobile or a 3rd party but the T-Mobile variant, NOT OnePlus themselves or a different carrier."

So, just to clarify, if I buy directly from OnePlus BUT I buy the T-Mobile variant (the only version of the 7t that they are selling) and put it on a TMobile network, can you unlock it? Since you explicitly mentioned not buying from OP I wanted to check about this specific scenario.

2. I haven't used XDA before, how does one PM? (I realize that you turn it off sometimes and maybe that's why I can't see it but want to make sure that I'm not missing it somewhere).

Thanks!
[OnePlus 7T Guides, News, & Discussion] jazzdglass:
I think he's no longer offering the service.
[OnePlus 7T Guides, News, & Discussion] gonzalezb:
Yeah im not sure as well ive been checking everyday for a week and it never lets me PM i hope he still doing it if not i guess ill be waiting until i pay it off and tmobile can unlock it.
[OnePlus 7T Guides, News, & Discussion] Delta105RUS:
Well, my phone is paid off and neither T-Mobile or OnePlus are helping me. I still get the error 255
[OnePlus 7T Guides, News, & Discussion] vtdrxx:
he got alot of requests...he will pm u when unlock is success so be patience. i got mine done in a week timeframe
[OnePlus 7T Guides, News, & Discussion] Dougshell:
When I try to send a pm via the xda app, it fails. I am trying to send my information for an unlock.
[OnePlus 7T Guides, News, & Discussion] Short_Wiz:
I send mines for over 3 weeks now, and no reply or anything. :confused:
[OnePlus 7T Guides, News, & Discussion] Josh McGrath:
Y'all also need to keep in mind that if you didn't give the right info needed, or if your line isn't qualified, he stated he doesn't have time to reply that it wouldn't work.
[OnePlus 7T Guides, News, & Discussion] tatapuhx1:
unlock 7t t-mobile

bro your pm closed. Help me unlock my phone, i'll pay you
[OnePlus 7T Guides, News, & Discussion] the show stopper:
I dialed 611. Told them that i bought the phone directly from oneplus but it is a tmobile variant, it's paid off and i want to request an oem unlock. I talked to two diff reps with in a week. The first one took my imei and replaced it on account. And told me he was gonna call me back after two days but never happened. . Then i tried calling 611 again. The lady told me she could not help either. Then i chated with one plus on their website. The person took all my info just like tmo and told me they could not help either.

Next day i was not able to make calls but i was able to receive calls. So I reset my network settings and tried the built-in unlock app again and this time my phone was permanently unlocked. So i don't really know who really helped me. But this was my experience with this whole unlocking thing.
[OnePlus 7T Guides, News, & Discussion] Delta105RUS:
Wow, mine just worked. I was having exactly the same issue as you. Phone support for t-mobile pointed me at oneplus. oneplus email support pointed me back at t-mobile, then stopped answering my emails. Then I had to tweet at t-mobile, I DM'd with a rep, and they said they've escalated my request. Right before I typed this, I've tried unlock again and it WORKED! The phone is unlocked. I can call in and out.

So, if anyone else has this issue, where the phone is paid off and gets error 255, tweet [MENTION=259357]Tmobile[/MENTION]Help.
[OnePlus 7T Guides, News, & Discussion] the show stopper:
Glad it worked out for you. Right now i am just waiting on oneplus to send me my bootloader unlock file.
[OnePlus 7T Guides, News, & Discussion] gonzalezb:
So I was really badly wanting mine unlocked heard people had good luck with TMobile help on twitter so I sent a DM and the permently unlocked it and I have only had the phone for 4 months still owe on the phone as well.
[OnePlus 7T Guides, News, & Discussion] MuraliGkr:
I just bought T-mobile version of 7T from oneplus. Can i get this unlock service if I take a prepaid T-mobile service? And request for unlock after 3 days?
[OnePlus 7T Guides, News, & Discussion] Josh McGrath:
Nope, not on prepaid.
[OnePlus 7T Guides, News, & Discussion] nikoncamera:
hello can you please help me to unlock

hello can you please help me to unlock , will donate once it works,, please please please
[OnePlus 7T Guides, News, & Discussion] warlord2045:
I bought a Oneplus 7T off ebay stating network unlocked but when I received it, I checked it is T-Mobile locked condition. I ran a checked, IMEI is cleaned. I shipped the unit to overseas and not in US.

I tried permanent network unlocked but has ERROR CODE = 255. Tried clear network setting and did a power cycle and still cannot.

I do able to get a temporary unlocked.

Are you able to help?
[OnePlus 7T Guides, News, & Discussion] the show stopper:
If you bought it directly from oneplus, you have to contact Tmobile on twitter.
[OnePlus 7T Guides, News, & Discussion] jazzdglass:
What if we want to pay 3rd party unlocker?
[OnePlus 7T Guides, News, & Discussion] KOLIOSIS:
Make sure the unlock is for the T-Mobile version, otherwise, it won't work. That goes for any T-Mobile branded device.
[OnePlus 7T Guides, News, & Discussion] marcmann982:
Is he still offering this service or is there anyway to get this another way ? Can't send a pm to mobb :/
[OnePlus 7T Guides, News, & Discussion] gonzalezb:
Just send a PM to T-Mobile help on Twitter as long as your balance is current and at least 4 months is paid the will do it. The will tell you the cant guarantee it will work because your device isn't paid off but we can try say yes and try a perm unlock from settings it will work. Did mine and my wifes waiting for BL unlock code from OnePlus now.
[OnePlus 7T Guides, News, & Discussion] warlord2045:
Are you in US? I am not in US but the rep from T-Mobile wants to verify my T-Mobile account. I do not have an US mobile number.
[OnePlus 7T Guides, News, & Discussion] Josh McGrath:
It's impossible to do without a US account anyway.
[OnePlus 7T Guides, News, & Discussion] warlord2045:
Sad ...
[OnePlus 7T Guides, News, & Discussion] Bro_Vinh:
I GOT IT UNLOCKED!

I have been waiting for for [MENTION=6958558]mobbdeep[/MENTION] to open up his DM for a personal message to no avail. Here is my current setup:

- t-mobile OP7T bought used via ebay (got an awesome deal on a mint condition blue one for 300 bucks)

- clean IMEI

- Been on a t-mobile post-pay plan for about 2 weeks

- Error 255

I've tried calling t-mobile several times. I'm not the original own and I don't know it's actual status so they couldn't help me. I've seen people trying to DM T-Mobile Help via twitter but I thought I'd get the same answers I got via phone. Messaged them on twitter and told them I just want to unlock my phone for international use. Gave them my IMEI and email. Went through a few restarts. Makes sure you are NOT on wifi and on the T-Mobile network. IT WORKED!!!!! Took all but about 10 minutes, most spent waiting between chat messages. I'm stocked.

Now waiting for the unlock code from ONEPLUS. Is there a way around this waiting time?
[OnePlus 7T Guides, News, & Discussion] Bro_Vinh:
I GOT IT UNLOCKED!

I have been waiting for for [MENTION=6958558]mobbdeep[/MENTION] to open up his DM for a personal message to no avail. Here is my current setup:

- t-mobile OP7T bought used via ebay (got an awesome deal on a mint condition blue one for 300 bucks)

- clean IMEI

- Been on a t-mobile post-pay plan for about 2 weeks

- Error 255

I've tried calling t-mobile several times. I'm not the original own and I don't know it's actual status so they couldn't help me. I've seen people trying to DM T-Mobile Help via twitter but I thought I'd get the same answers I got via phone. Messaged them on twitter and told them I just want to unlock my phone for international use. Gave them my IMEI and email. Went through a few restarts. Makes sure you are NOT on wifi and on the T-Mobile network. IT WORKED!!!!! Took all but about 10 minutes, mostly spent waiting between chat messages. I'm stoked.

Now waiting for the unlock code from ONEPLUS. Is there a way around this waiting time?
[OnePlus 7T Guides, News, & Discussion] rmo313:
It's my last chance

Hi, I'm out of the US and my oneplus 7t cant be sim network unlocked. Can you help me please?
[OnePlus 7T Guides, News, & Discussion] Delta105RUS:
Tweet at the Tmobile help people in US. hopefully they have a solution. But, you might want to return yours and get the international version. I assume the tmobile version has to be on their network first.

But I dont know for sure.
[OnePlus 7T Guides, News, & Discussion] rosboy:
[MENTION=9231168]Bro_Vinh[/MENTION], I got the same setup as you. After 3 hours on the phone with T-Mobile to no avail, I DM'd on Twitter and got it unlocked in a hour.

Oneplus is exactly 1 week, nothing to do about that.
[OnePlus 7T Guides, News, & Discussion] whiggs2:
Ditto

Same here. I would appreciate it
[OnePlus 7T Guides, News, & Discussion] floopidze:
Hello, many many respect to [MENTION=6958558]mobbdeep[/MENTION]. Hopefully you can answer my question and can help me.

I bought my OnePlus 7T on OfferUp and seller didn't tell me that this OnePlus 7T is blacklisted! ( So I'm sure can I still use the T-Mobile SIM card at least 3 days? Does this block matter? Are you still able to help me? Please, PM me? You are my last hope. Thank you so much for all of you do. Cheers

P.m for some reason I can't even send you pm, is anybody know why? Thx
[OnePlus 7T Guides, News, & Discussion] Timmmmaaahh!:
[Thread Closed]

Thank you for your understanding and have a wonderful stay on XDA!
[OnePlus 7T Guides, News, & Discussion] Oswald Boelcke:
[Update 20200210] Service continued in this thread: https://xdaforums.com/t/t-mobile-free-sim-unlocking-service-oneplus-samsung.4231597/

CC: @Timmmmaaahh
[OnePlus 7T Guides, News, & Discussion] carnivalrejectq:
I'm still not seeing it as simple as you're acting like. When I go that thread I get really confused about what's going on, and I'm not a complete novice.
[OnePlus 7T Guides, News, & Discussion] c19932:
Are you able to unlock the bootloader once the phone is Sim unlocked? Thanks!
[OnePlus 7T Guides, News, & Discussion] R800x_user:
It is as simple as using the Indian msmtool, then upgrading locally. you just have to read though the msmtool thread, [MENTION=2641108]c19932[/MENTION] yes once you sim unlock you can unlock the bootloader unlock. As per usual a week's time on the dot from the time of request for the unlock bin.

If you're unsure check out this thread:

https://xdaforums.com/oneplus-7t/how-to/msm-tool-tmobile-7t-t3994931/page4

let's keep this strictly for sim unlocking
[OnePlus 7T Guides, News, & Discussion] carnivalrejectq:
Sorry, didn't mean to flood this great thread. I guess the issue is I can't seem to find the Indian tool. The link from the comment in that thread just takes me to a rom. I don't get where the actual Indian msm tool is.
[OnePlus 7T Guides, News, & Discussion] Tap_818:
Sim unlocked. This is definitely legit. Couldn't be happier right now. Thank you sir! Donation coming your way
[OnePlus 7T Guides, News, & Discussion] Moharajaa:
Hey, brother thanks for that helpful post!

I have tried unlocking my Oneplus 7T using the 'Unlock' App even though I haven't paid off fully. But fortunately, after many attempts, I have been approved to unlock the phone 'Permanently'! :D Now my device has the option to 'Unlock Bootloader' in the developer mode. I'm trying to flash the International firmware. In order to flash different built through ADB-fastboot using Windows PowerShell, It's requiring me to flash the 'Unlock token' first...! So, I made an application for the unlock token here ( https://www.oneplus.com/unlock_token ) I'm not sure if they are providing me or not! In this case, I need your HELP!

Thank you..!
[OnePlus 7T Guides, News, & Discussion] Karl:
Have you checked out oxygen updater, after you go to Indian rom install it
[OnePlus 7T Guides, News, & Discussion] infamousvincci:
Sent u a pm
[OnePlus 7T Guides, News, & Discussion] rt_asr:
pm sent

thanks in advance
[OnePlus 7T Guides, News, & Discussion] OuncE718:
You have to wait for the "unlock token". Fill out that form and wait about a week.
[OnePlus 7T Guides, News, & Discussion] mobbdeep:
I should be able to as long as it's on the T-Mobile network for AT LEAST 3 days before I make an attempt to unlock it.

O/T I will start doing more unlocks shortly. Thanks for your patience!
[OnePlus 7T Guides, News, & Discussion] awr128:
Thank you so much, worked perfectly
[OnePlus 7T Guides, News, & Discussion] gpmech7:
Awesome

Worked like a charm...

Thank you very much:good::good:
[OnePlus 7T Guides, News, & Discussion] mobbdeep:
All requests received via PM have been completed. I will be resuming them tomorrow!
[OnePlus 7T Guides, News, & Discussion] DarkShadow190:
Thank you! Unlocked
[OnePlus 7T Guides, News, & Discussion] Colorblind:
Unlock worked on a plan with a loan from t-mobile. Thanks!
[OnePlus 7T Guides, News, & Discussion] imstill@g:
I will in contact!!! Thanks!!!!
[OnePlus 7T Guides, News, & Discussion] mobbdeep:
Taking unlock requests all day today.

OnePlus 6T (some work), OnePlus 7 Pro, OnePlus 7T, and soon to be OnePlus 7T Pro McLaren. PM me now for no wait!
[OnePlus 7T Guides, News, & Discussion] gigawatt:
Are you a long standing xda membber, giving out imei that can be used for anothers benafit is not cool if that is whats up.
[OnePlus 7T Guides, News, & Discussion] mobbdeep:
You clearly didn't even read the thread. I don't need your IMEI and you can't do anything with ones IMEI anyway. Plenty of people have confirmed what I'm doing is legit. If you have any further questions, feel free to PM me.
[OnePlus 7T Guides, News, & Discussion] rob420p:
I haven't had ant issues
[OnePlus 7T Guides, News, & Discussion] yglad:
Device unlocked! Thank you so much:good::good:
[OnePlus 7T Guides, News, & Discussion] jAm-0:
successfully unlocked! thanks a ton mobbdeep!
[OnePlus 7T Guides, News, & Discussion] gigawatt:
No, I know your not shady, but just asking. Your a great member of the community.
[OnePlus 7T Guides, News, & Discussion] gus2144:
Sent a PM. Is there anything special we do or do we just do permanent unlock?
[OnePlus 7T Guides, News, & Discussion] OuncE718:
You need to click on permanent unlock and then if you want to unlock the bootloader you should follow the instructions on the MSM Tools thread.
[OnePlus 7T Guides, News, & Discussion] ohno7158:
Will the updates be faster than T-Mobile , will it revert to OP. Direct updates and registration. Thanks.
[OnePlus 7T Guides, News, & Discussion] mobbdeep:
I believe the bootloader has to be unlocked in order to get the Local Updates option which then will allow you to always upgrade to the latest OOS update without waiting for T-Mobile.

O/T: Plenty of 7T Pro 5G phones have been unlocked by me today. I'll be resuming unlocks on Wednesday.
[OnePlus 7T Guides, News, & Discussion] ohno7158:
Thank You.
[OnePlus 7T Guides, News, & Discussion] gus2144:
Thanks for the unlock OP!
[OnePlus 7T Guides, News, & Discussion] Brandonsmerry:
I Can't Seem To Be Able To DM You

I'd like to get your help on this, but I can't DM you for some reason.
[OnePlus 7T Guides, News, & Discussion] jimm2:
Thank you for the sim unlock. Worked great!
[OnePlus 7T Guides, News, & Discussion] jackblack09:
can you help me please for unlock my op 7t

i have oneplus 7t tmobile , can you help me please
[OnePlus 7T Guides, News, & Discussion] bynarie:
Hey bud, thank you for offering this service. In a couple of days(Just got the phone yesterday), I will PM you my info and send you some cash. This is the only way I can use an android device is if its unlocked. Thanks a million!!!!
[OnePlus 7T Guides, News, & Discussion] JedixJarf:
Same here!
[OnePlus 7T Guides, News, & Discussion] bynarie:
Keep me posted on progress. Thx
[OnePlus 7T Guides, News, & Discussion] mobbdeep:
I apologize for not getting around to the unlocks. I have been busy with some personal stuff which has made me lose motivation to do anything. Nonetheless, I will be resuming them tomorrow/today and will be getting back to everyone who PM'd me once your request is done. I'm now backed up with about 35 requests waiting on me.

Thanks for understanding.
[OnePlus 7T Guides, News, & Discussion] mobbdeep:
Due to some personal issues going on, I have not been able to do the unlocks. I will sincerely apologize but they will 100% be done on Saturday.
[OnePlus 7T Guides, News, & Discussion] bynarie:
It's no problem at all. Thank you very much!
[OnePlus 7T Guides, News, & Discussion] attarnabi:
:svetius:
[OnePlus 7T Guides, News, & Discussion] juscozimme:
Thanks for the update ?
[OnePlus 7T Guides, News, & Discussion] mobbdeep:
I'll be knocking out all requests I have waiting on me in a few hours.
[OnePlus 7T Guides, News, & Discussion] allenjthomsen:
Thank you for the sim unlock worked as described and is greatly appreciated donation inbound
[OnePlus 7T Guides, News, & Discussion] mercer_mercer:
Worked like a charm. Thanks so much!
[OnePlus 7T Guides, News, & Discussion] 911joeblow:
Worked great on my new 7T PRO McLaren! Thanks!

Now I just need to get the dual tray SIM to work...
[OnePlus 7T Guides, News, & Discussion] hospitalityalpha:
Worked on both my kids 7t phones, thanks again man!!
[OnePlus 7T Guides, News, & Discussion] mpetruzz:
PM sent!!
[OnePlus 7T Guides, News, & Discussion] mobbdeep:
After 7 hours of device unlocking, all requests have been 100% fulfilled. If you did not get a PM back from me saying your request has been completed, please PM me. All new requests will resume tomorrow.
[OnePlus 7T Guides, News, & Discussion] OuncE718:
You are truly the man/woman. [emoji123][emoji123][emoji123]

Thanks for helping us out.
[OnePlus 7T Guides, News, & Discussion] mobbdeep:
Appreciate the positive feedback. I'll be doing unlocks all day today on your OP7 Pro, 7T, and 7T Pro McLaren 5G!
[OnePlus 7T Guides, News, & Discussion] cagle333:
Thank you so much. Worked like a charm.
[OnePlus 7T Guides, News, & Discussion] humblehyper:
AMAZING! IT WORKED! THANK YOU VERY MUCH, Sorry for the caps lol
[OnePlus 7T Guides, News, & Discussion] rt_asr:
It failed, gave me error code 255