yashsingh1/xdaforums huggingface dataset:
[One (M8) General] Bertl502:
SIM Unlock for international carriers

Hello everyone. Quick question since I haven't been able to find an answer for my question on other forums:

I just purchased a Sprint HTC One M8 and I want to use it in Guatemala. With this SIM Unlock will it work with the carriers here? I looked up the band frequencies here and they use 850/1900...

Any help will be greatly appreciated. :good:
[One (M8) General] actual69:
Thanks

Awesome worked like a charm for me
[One (M8) General] *Arctic*:
Perfect ! Sim unlocked in 2minutes ! =D Tks
[One (M8) General] G1_enthusiast:
anyone on GSM network test this on a verizon or sprint after unlock? I was able to unlock it but couldnt make connection to Verizon sims :(
[One (M8) General] confli©t:
i have a sprint-locked phone but will be using it in the philippines. this unlock used to work with sprint, which instructions should i follow for sprint now?

thanks
[One (M8) General] talpes:
Worked like a charm. Thanks buddy ?

Sent from my HTC One_M8
[One (M8) General] actual69:
Great

This worked great!
[One (M8) General] talpes:
Read the first post! This won't work on sprint devices.

Sent from my HTC One_M8
[One (M8) General] hllby666:
Sim Unlock

Hi All,

I have gone through all the posts on this thread. Unfortunately, I couldn't find any post with a HTC One M8 phone locked to Claro network, Puerto Rico. I have a HTC One M8 GSM version with 4G connectivity. I am currently running stock 4.4.2 with no modifications. I just have a couple of quick questions.

1) Will this method work for HTC One M8 locked to Claro network, Puerto Rico?

2) Is there a way to backup default config.dat file? (Just incase if things doesn't turnout in my favor)

3) Can I relock bootloader and unroot after flashing config.dat file? Will this again simlock my phone?

4) Does this method work the same way at the core level as manually entering code? I had same unlock codes from two different reputed sites but didn't work. So just wanted to make sure this method works in a different way.

Thanks for your help. :)
[One (M8) General] JEANRIVERA:
There's no config.dat to backup it is not a file that exists on the phone and you can do a factory backup with the custom recovery once you unlock the boot loader put a custom recovery and make a backup before doing anything but this process won't hurt your phone if it doesn't work but remember you need to be S-Off to be able to do this.
[One (M8) General] hllby666:
Thanks! I would greatly appreciate if you could please help me with my other questions? Most important is 4th one. Would it affect unlocking?
[One (M8) General] JEANRIVERA:
I do not understand your question.

No entiendo tu pregunta
[One (M8) General] punisher195:
worked like a charm.. thans a lot !

this is petm unlock? can i now do update, factory rese and etc without losing unlock?
[One (M8) General] hllby666:
Thanks alot for this. It worked on my M8 that was locked to Claro Network, Puerto Rico.
[One (M8) General] hllby666:
Hi All,

I had done the sim unlock using this procedure. Now, I plan to convert my HTC One M8 to Developer Edition. Do you think it will affect my sim unlocking? Thanks for your help!
[One (M8) General] JEANRIVERA:
Once it's done nothing that you do to your phone will affect the SIM unlock
[One (M8) General] hllby666:
Thanks alot!!!! For ur reply.
[One (M8) General] jonathan413:
tried this on tmobile m8 and it doesnt work. tried it on stock and on skydragon. rooted, soff, bootloader unlocked, supercid. doesnt read att card. put in metropcs card and it reads that but gives no service or data and apn is correct so i dont see what the problem is.

edit: if i pop in foreign sim card, no prompt pops in to input code so even if i went the *official route* it wouldnt work. bummer.

edit2: it worked after mirroring the sim card opposite direction. dont see why that mattered but it read it and its working. thanks OP for this mod.
[One (M8) General] deprite:
Worked perfect on a H3G-AT (with SID, tested with an alternative local card, next week a test with a foreign card)

Edit:

I am on a Chinese card now, worked perfect!

Thanks allot :)
[One (M8) General] androidlab99:
This week ...
[One (M8) General] androidlab99:
Worked perfect
[One (M8) General] EternalAndroid:
S-off worked for you with sunshine on skydragon?! Also when on sense what hboot, firmware & android version were you running?
[One (M8) General] absp2006:
Houston... Yeah, we got something no good

Running a Stock 5.0 RUU Rooted

AT&T M8 (MetroPCS SIM) Recieved Monday the 8th

Did the S-Off (Sunshine), the Super-CID, then the... this config.dat stuff (2x), but a dead signal, or rather one that SIM rejects. Tried another SIM on same network, same outcome.

Tried to see if ROM was problem by doing Cyanogen, but no.

Not sure what to do now...

Since I did rom then S-Off, then SIM, I wasn't asked for unlock code (I felt this needed to be addressed)
[One (M8) General] AndroidInsanity:
Has anyone tried unlocking a EE locked M8??
[One (M8) General] chozycorleon:
Please kindly tell me how u did it. i have done all those steps am still getting invalid sim. or do i have to downgrade from 4.4.4 so some lower?
[One (M8) General] JEANRIVERA:
I think you need to this first for Metro PCS

https://www.metropcs.com/account/activation.html

i read somewhere that Metro need the IMEI on their system to be activated first
[One (M8) General] absp2006:
The website says "The provided device is not eligible for activation via the web. Please use a different phone"

whereas MetroPCS says they support the phone...

Should I get a new one?
[One (M8) General] skylinegtrvspec:
im soff super cid boot loader unlocked and failed
[One (M8) General] skylinegtrvspec:
it seems if you update the hboot this fails,need to downgrade
[One (M8) General] Da9L:
Got my One M8 S-OFF, SuperCID and TWRP recovery is installed.

Upon running this with the Config.dat on sd card from hboot, it seems to be ok, but there are however some more messages than shown here. After running it foreign simcards does not work. Im getting limited service.. What have i missed ?
[One (M8) General] Yepix:
I will do this as soon as I get my new m8
[One (M8) General] prettyha8:
I have HBOOT-3.19.0.0000

I tried the method in the First Post, it worked, but when I insert a different SIM card it gives me NO SIGNAL.

I have decided I will just buy a $5 unlock from eBay. However, now that I have unlocked via CONFIG.DAT method, I no Longer get the "Enter UNLOCK Code to SIM Unlock device" pop-up.

Is there a way I can RE-Lock the device, such that I can get to the menu to enter in the Purchased Unlock code from eBay?

Thanks, Much Appreciated!
[One (M8) General] Da9L:
I had HBOOT 3.19 too and with that this did not work for me .. I tried downgrading the device to HBOOT 3.16 and with this i got different results.. Now i do get signal when inserting another sim card, but im unable to make any calls. I get a OUT OF SERVICE message when trying. But data is working as i get a system update notification
[One (M8) General] Leokadio:
Pass unlock, but fail connecting network

Hi, I have the same problem, the config.dat file make the trick, but now any simcard that i plug into the phone has no signal.

I'm in Hboot 3.19, bootloader unlock with Hdev, S-Off with Sunshine, and tried several roms (viper, cyanogen, insertcoin) and simcards, including the original one that came with the phone.

Appreciate any help, and sorry for my bad English usage.
[One (M8) General] droid1980:
cid getter

Can we tell without buying another account elsewhere?
[One (M8) General] ikeny:
From the last few posts, it seemed that HBOOT-3.19.0.0000 is giving problems with the sim unlock, although it wasn't clear which version of M8 people are referring to.

I have a stock M8 from Rogers, which should be very similar to AT&T. Did any of you with similar hardware and HBOOT-3.19.0.0000 try the config.dat unlock?
[One (M8) General] jshamlet:
I did this on my AT&T M8 as soon as I got it, though it came with the very first OS/Firmware release (4.4.2 and HBOOT 3.16). FWIW, it's working fine with an AT&T SIM even though it's now on HBOOT 3.19 now. I haven't tried it with a T-mobile SIM, though.

It is mildly disturbing that it may not only fail to continue working, but prevent other SIM unlocking methods working as well. OP might want to make that more clear in the first post.
[One (M8) General] Leokadio:
Vodafone Spain 3.19 Crash

Mine was a international version from Vodafone (Spain), with Hboot 3.19, and have the problem of no signal after using the config.dat file.
[One (M8) General] Da9L:
Im afraid of this too.

And for info the M8 i was trying on was an unbranded version, but brought through 3 believe it was
[One (M8) General] jshamlet:
It is fairly clear that this method *did* work, as lots of people (myself included) used it, but it may no longer work with the latest bootloader. Since it already requires S-off, it may be helpful to downgrade the bootloader before doing this.

It wouldn't be the first time. I had to downgrade the firmware on my old Samsung Skyrockets to ICS to do the NVRAM initialization hack on them.
[One (M8) General] redpoint73:
Downgrading might not help. I was helping helping user from post #506 above, as well as on a separate thread here: http://xdaforums.com/htc-one-m8/help/help-sim-unlocking-m8-t2988838

SIM unlock still didn't work after downgrading all firmware. Although he had previously tried this method with hboot 3.19

before

downgrading (no idea if that may make a difference).

I'm

guessing

(and that's all it is, a guess) there is a hardware change to patch this exploit. Might be safer to just pay a few $ to get a SIM unlock code first, rather than risk being locked out of any SIM unlock, or even lose voice call ability.
[One (M8) General] jshamlet:
Agreed. Had this development been known when I was reading through this thread, I would have stayed far, far away from it.
[One (M8) General] prettyha8:
rogers m8 sim unlock, now bricked

I did this to my Rogers m8 which I converted to GPE 5.0.1 with HBOOT 3.19

After performing "SIM UNLOCK" via config.dat mentod, all SIM CARDS, including ROGERS sim card will not read on the phone.

Phone is bricked(?). Does anyone want to buy off me as-is? I have already paid Sunshine for S-off. Works great as a Wi-Fi tablet.

PM me if you want it.

I guess I can try reverting back to Rogers Stock HTC m8 - does anyone have instructions on how to do that. I guess no harm trying anymore : /
[One (M8) General] ikeny:
Sorry to hear that.

Your best bet is probably to use the TWRP nandroid backup (Rogers) to restore the phone:

http://xdaforums.com/showthread.php?t=2710735

I followed the above guide previously to return my device to stock. Don't forget to change CID to ROGER001 first. In your case, you only need up to step #8.

[Update] new link, previous one was wrong
[One (M8) General] jshamlet:
I doubt seriously that reflashing the OS will make a difference. I suspect that something is corrupting the modem's NVRAM when this technique is used with newer HBOOT/radio firmware. Unfortunately, that means that even if you get back to your original software, it will still not work. However, it's worth a try - you are already dead in the water, so it won't hurt.

Op really needs to warn people in the first post that this method is now very risky, or we are going to see lots of radio-bricked devices.
[One (M8) General] prettyha8:
I agree, but I will give it a shot. But pls continue to give suggestions - any help is GLADLY appreciated!

Does anyone know how to UNDO the config.dat write? When viewing config.dat in a HEX editor, it seems like not much info. Maybe I can re-SIM-Lock the device back to Rogers (?) *hopeful!
[One (M8) General] ikeny:
It doesn't hurt to bring it back to stock. At least you will be ready for lollipop OTA, and there might be a chance that the new rom would overwrite the corrupted component.
[One (M8) General] JEANRIVERA:
Unfortunately it appear that HTC has patched this vulnerability that let the device to be SIM unlocked by this procedure, as you guys know and it is stated in the op this wasn't done by me I just shared available information and I did tried my self on the AT&T device and it was confirmed to work on other variants, but as everything else good, it has come to an end until further notice I will ask the moderator to close this thread and leave it for reference only. Thanks for understanding.
[One (M8) General] bbroskis:
Trouble with my M8

I have been having a lot of trouble getting my HTC One M8 harman-kardon edition working on the AT&T network. I followed all of the steps, installed TWRP, rooted, S-off via sunshine, and I tried this method but can not seem to get the phone to connect to the network. When I go into network preferences I can choose GSM network, but the available GSM networks is always grayed out. Any suggestions?

Thanks,

Ben

P.S. I removed the Software Status: Tampered but I don't think that that should affect anything...
[One (M8) General] jshamlet:
One last idea, though it may or may not work.

Since you are S-off, downgrade to the original developer edition using an RUU. That will put all firmware, including HBOOT, radio, etc. all back to stock from yesteryear. Then, try running the config.dat against it. I seriously doubt the hardware has changed, but it is very likely the radio and HBOOT have, so you might have a chance at getting this to work by reverting.

It's a long shot, but see if you can find: RUU_M8_UL_K44_SENSE60_SECURITY_BrightstarUS_WWE_1.54.1540.10_Radio_1.16.21331931.LA11G_20.31A.4145.02L_release_372510_signed_2.exe

I have a copy if you can't find one on the HTC site.
[One (M8) General] bbroskis:
You could try it from this forum... http://xdaforums.com/htc-one-m8/development/ruu-m8-developer-edition-sense-1-54-t2884777

Any suggestions for me jshamlet?
[One (M8) General] jshamlet:
Not other than what I posted. Backup your data, make sure your CID/MID match one of the Developer Edition/Unlocked Edition phones, and blow it away back to the past. The RUU will completely revert your phone back to bone stock, and that particular RUU will put it back to the way they were last year when they first came out. Note, it doesn't erase an external SD card - I've left mine in before, and it wasn't touched.

Then, once it is done, reboot into the boot loader and try again with the config.dat procedure here. There is a very good chance that the original radio software in that RUU will support this method.

Like I said, it's a long shot, but if your phone is already toasted, it won't do any further damage.
[One (M8) General] bbroskis:
How do you change MID? Can you do it through adb?
[One (M8) General] jshamlet:
http://xdaforums.com/showthread.php?t=2708581
[One (M8) General] coal686:
Per the OP's request, this thread has been closed. As it says in the OP, the vulnerability has been patched and so this guide does not work anymore. If you have issues and need help, please post a question in the Q&A thread. Thank you for understanding.

coal686
[One (M8) General] bookfast:
Confirmed working on Telus M8, now using Bell SIM without issue. Thanks so much!!
[One (M8) General] sinnedone:
subsidized price, ditch sprint = 600 dollar phone for 200.
[One (M8) General] JEANRIVERA:
That was my guess but still you will be owning Sprint the ETF unless you are not planning on paying them and then if you don't pay them they can put the IMEI number of the device on a black list and then again no other carrier will be able to bypass that as far as I know
[One (M8) General] jonathan413:
Tried supercid on att variant and I popped in a metro pcs card and it want a code..it was locked..What did I do wrong?
[One (M8) General] JEANRIVERA:
Please try the other method
[One (M8) General] jonathan413:
Can't as I don't have an sdcard
[One (M8) General] JEANRIVERA:
Can't you borrow one from a friend? Or buy it @ Walgreens or Wal-Mart they are really cheap specially the 2gb or 1gb
[One (M8) General] scumpicule:
Hello

Anyone has tried on the M8 international version ? ( Orange, Vodafone, or another europeean operator )
[One (M8) General] jonathan413:
At the moment no. But I'll get to it in the next few days and report back.
[One (M8) General] CB620:
Will this work on my Dev Edition lol?
[One (M8) General] JEANRIVERA:
I don't see why not give it a try
[One (M8) General] graffixnyc:
He was joking the Dev edition is unlocked.. lol

I can confirm this method worked on both of my M8's (both AT&T versions) I just tested when my daughter's boyfriend came over and had a TMO sim. popped it in and bam, started working. One of them I had to manually change the APN settings to select a TMO one (the other I didn't) but worked without a hitch :)
[One (M8) General] visitor29:
I'm on 3 branded as well and no success, everything doing like says in instruction, but looks like no success. Well... ok... I didn't try different sim yet, cos I don't have it, I jut check status on couple free available apps on Google play and where is says sim status it says - NETWORK LOCK.
[One (M8) General] vinylee79:
I can confirm that it definitely works mate. Just put a voda sim in, and made a call with no problems at all.

Are you putting the file on your external sd card?
[One (M8) General] visitor29:
Yeah true the sdcard like on instruction. But will tell you, I didn't try put different sim, cos I don't have it, will reply back when will get some chance. P.S. I jus wondering why apps from Google play says network lock like https://play.google.com/store/apps/details?id=com.gsmdev.simcard maybe I'm wrong somewhere... Give me a favor, can you confirm what shows on your device with that app, sim status?
[One (M8) General] brar.arsh:
Actually it show you that your Sim card is locked(Connected) to the network. It only gives you the Sim card info and not Phone lock status.
[One (M8) General] visitor29:
Thanks for this, will try on days get nanosim then text you back.
[One (M8) General] electronicrice:
Thanks for taking this almost verbatim from my Amaze post and not even giving me credit for the write-up... Also pretty sure Binary doesn't even have the device and didn't confirm it works....just FYI

http://xdaforums.com/showthread.php?t=1659430

---------- Post added at 01:43 PM ---------- Previous post was at 01:34 PM ----------

For everyone wondering about SuperCID...CID locks your phone to a specific carrier's official RUU firmware. By using SuperCID and setting to all 1's means you can flash any carrier firmware. It has nothing to do with SIM unlocking.
[One (M8) General] JEANRIVERA:
You are right my friend I'll fix it as soon as I get home
[One (M8) General] JEANRIVERA:
You are right my friend I'll fix it as soon as I get home

OP updated with proper credits to [MENTION=467064]electronicrice[/MENTION]

for the original guide!!!!!!!!!!!!
[One (M8) General] Hernie22:
Has anyone tried contacting Sprint? Isn't there a number that they give you that unlocks your phone, assuming you're off contact? The reason I ask is that's how it was on the m7. You just had to call, type some shiz into the dialer and money!
[One (M8) General] pisang_aza:
supercid

so without supercid "11111111" will still be unlock with this method? ( stock cid )

I will try to unlocking my htc m8 sprint variant
[One (M8) General] Tiann:
I'll test this later tonight once I have an alternative SIM to unlock it with.

Was waiting for something like this, so thanks :D
[One (M8) General] visitor29:
Coming back with news, I can confirm simlock is gone. Get phone from 3 Ireland week ago, following by instruction straight away and only just now get a chance to borrow nanosim from one of the "iPhone lovers" now putting O2 Ireland and wollaa :D phone is unlocked. Thanks

---------- Post added at 07:14 PM ---------- Previous post was at 07:11 PM ----------

Yes works on Ireland 3
[One (M8) General] JEANRIVERA:
Yes !! No need to be SuperCID, not sure if it works on Sprint variant though please report back

Nice !!! Let us know the outcome ?
[One (M8) General] renehd2:
Can anyone confirm this works with the Sprint variant??

I want to buy a Sprint variant because there are some m8 for sale on craigslist (most of them Sprint and Verizon) and i want to use it with at&t.. will it get 3g?
[One (M8) General] JEANRIVERA:
sorry I can't confirm it will work on Sprint version as I said before it will probably work but just for international sim cards not for US sim cards and even if it does work probably the radios inside the phone aren't the same for AT&T or T-Mobile
[One (M8) General] renehd2:
Well i check the Sprint HTC One m8 bands. It has 850 for the 3G, but no 900, so i think it will depend of where do you live, but Im not sure, someone has to confirm this. Someone sim unlock the Sprint m8 and try a att or tmo versión please

EDIT: most carriers work like this:

2G: 850/900/1900/2100

3G: 850/1900

Those are the bands como used in México and i guess they are the same for AT&T. Im not sure about T-Mobile

So, in theory, the Sprint HTC ONE M8 can run 2G/3G with AT&T, MOVISTAR MÉXICO, TELCEL and all other carriers that work with 3G 850/1900
[One (M8) General] renehd2:
What simcard did you try? Did it get 3G/4G?
[One (M8) General] andrewnelson:
Worked great M8
[One (M8) General] pisang_aza:
HTC One M8 Sprint sim unlocked

follow this method

http://xdaforums.com/showthread.php?t=2682242

work for my HTC M8 Sprint with Indonesian GSM Operator

good luck !!!
[One (M8) General] jonathan413:
Stupid question but does unlocking the phone unlock the aws band for tmobile?
[One (M8) General] JEANRIVERA:
I don't think so maybe flashing the T-Mobile radio will unlock the aws band
[One (M8) General] jonathan413:
Maybe. But that's only possible after their RUU is released correct?
[One (M8) General] JEANRIVERA:
No, you can actually flash radio partition even from recovery or fastboot once you have S-OFF just make sure you know what your doing, also find the correct radio and have a backup of current radio just in case....
[One (M8) General] andrewnelson:
SIM unlock successful on Sprint M8
[One (M8) General] sinnedone:
Are you using a sime from either tmobile or att?
[One (M8) General] jonathan413:
I'm s-off and can work fastboot but never flashed radio partition and don't know where to even get it.. also there aren't any radios released yet and I have no idea how to extract them.
[One (M8) General] JEANRIVERA:
OP updated with info for Sprint devices
[One (M8) General] JEANRIVERA:
you need to flash firmware those include radios but follow instructions you could brick your device if something goes wrong

also I'm assuming you have a AT&T device don't flash international firmware on a sprint device
[One (M8) General] jonathan413:
I found the firmware 1.54 ota.zip but it was 45mb so do I just flash that in recovery?
[One (M8) General] JEANRIVERA:
You need to follow instructions from the thread you found that I don't have the procedure to do that it isn't to hard to read if you don't there are high probabilities for you to brick your device
[One (M8) General] jonathan413:
Yeah I'll pass.thanks anyway.
[One (M8) General] romainpicou:
ATT HTC M8 Unlocked - BOSS :)
[One (M8) General] epsix:
Is there any problems giving our IME out like this? Is it safe?
[One (M8) General] JEANRIVERA:
I'm Not going to lie to you there could be somme trouble doing it but the guy of the web page is been known on XDA for years he is a recognized contributor & as far as I know there haven't been any complaints since he started that webpage ages ago
[One (M8) General] hippelettuce:
Just to be clear, I can SuperCID using the M7 method in the OP, correct?

Thanks :cool:
[One (M8) General] tiho5:
Yes mate
[One (M8) General] daddioj:
second method is perm no matter what correct?
[One (M8) General] JEANRIVERA:
Even if you run an RUU, which aren't none available except the Google play edition, it should stay locked no matter what I've done it before with other devices
[One (M8) General] toni_bal:
HTC M8 EE UK unlocked thank you nice and easy :D

Sent from my HTC One_M8
[One (M8) General] andrewnelson:
SIM unlock sucessful on Sprint M8 checked.
[One (M8) General] renehd2:
what did you do?

i cannot get my sprint m8 unlocked... i dont get the pop up screen after pressing start button