yashsingh1/xdaforums huggingface dataset:
[Sprint HTC One (M8)] omribe:
I have a phone that was running 1.54.651.8 software version.

I managed to S-OFF it with firewater. Then I tried running the sim unlock according to the instruction, and it seemed that everything works properly (No "unlock successful" message, but I didn't get that message on different M8s that were unlocked successfully).

I restarted the phone and inserted a GSM sim card. Nothing, the phone wouldn't connect to the GSM network.

So I downgraded it to 1.12.651.17 using the Nandroid backup available here in the forum and tried doing it all over again. This time the sim unlocker said that the phone was unlocked successfully. I rebooted the device and got the same result, the phone won't connect to the GSM network.
[Sprint HTC One (M8)] ycats:
I was just curious, what does this "sim unlock" mod do? I'm getting ready to go on a cruise and this weekend I added international services to my device which activated the sim card.
[Sprint HTC One (M8)] killcreek:
[{HELP] HTC ONE M8 HK Edition SIM UNLOCK

Guys.!!! Need help.

Does anyone here able to SIM UNLOCK HTC NE M8 HARMAN KARDON Edition.//???

I have S-OFF. but still unable to SIM UNLOCK.. tried all the methods mentions. everythng says SUCCESSFUL.. but when i put a foreign sim, it says no network....
[Sprint HTC One (M8)] sanchitgrover:
NEED HELP GUYS

I have a htc one m8 for sprint

I have unlocked it successfully For gsm

But whenever i try to shift it to gsm , it automatically shifts back to cdma.

I have tried *#*#4636#*#*
[Sprint HTC One (M8)] yehudam11:
Htc one m8 sprint h/k

Thank you,

I finally got to open the device for calls and internet by your guide well done

Is opening is forever and from what has to be careful to not lock it again ..

I'm on stock 4.4.2 Sense Rom 6 and All Perfect.

My question is,Can I install costom rom viperone 1.71? is it might re-lock the device?
[Sprint HTC One (M8)] 2strokenut:
So, this is pretty much an international unlock? Has anyone got it working for domestic carriers in the US?
[Sprint HTC One (M8)] blackice666:
I flashed Viper and the unlock was still present. Just make sure to have your network set to GSM mode.
[Sprint HTC One (M8)] turnjac:
Locked Screen following SIM Unlock Procedure

Hello,

I completed up to step 4 of your method, but when I rebooted, the phone screen locks after about 30 secs and asks for a password, which I don't have.

So far, I've restored a few different backups, but the phone screen still locks after 30 secs. I've also tried a factory reset & still no success.

I installed Google Play Edition & all is okay, however when I again restore to any of my previous back-ups, I get the screen lock again ?

I've also tried most of the methods for deleting the screen lock password in this posting, but none of these work:

http://xdaforums.com/showthread.php?t=2620456

I'm thinking of wiping the internal phone storage & then trying a restore again - is this advisable ?

Any suggestions would be appreciated.

Thanks
[Sprint HTC One (M8)] yehudam11:
locked htc one m8

Hello,

I managed to open the device for calls according to the guidelines and everything worked fine.

Have also installed another rom and no problems.

When I tried to put a sim from another company It did not work then I tried all sorts of ways until it locks

And now it is locked again.

Please help what should I do to fix, if I do the process again it will work? Or is there another way.

Thanks
[Sprint HTC One (M8)] chas123:
I don't know how many of you guys are coming from the m7, but if you will recall...

This method worked on the og m7 os. Sprint nixed it (downside of an open community). They then updated to include an omadm apk that no longer worked w/ this method, along w/ a radio that, even w/ an unlocked sim card, would not support US based GSM carriers. I hacked the omadm to allow the unlocking of the sim card w/out the fc's (vDM Client), and, along w/ the original radio that came with the phone, would allow coverage on subsequent M7 releases.

We do not have that original radio on the M8. Sprint nixed that shiite out of the box. I have hacked the latest omadm. It is available in post #2 of the Bad Boyz Harmon Kardon thread, but, more than likely, you will not get a sprint m8 radio to work on tmo. My theory is that if you are somewhere w/ absolutely no cdma signal at all, but the area has tmo, then you 'might' be able to get coverage. I would classify that as highly unlikely.
[Sprint HTC One (M8)] regspy:
HSPA+

Any of you guys who have unlocked it, can you confirm what data speeds you getting? is HSPA+ or normal 3G speed? Can you guys post speedtest results
[Sprint HTC One (M8)] Cashreedhar:
Sprint HTC One M8 Harman Kardon S-Off - SIM unlocked within 2 hou

Thank you so much!!!!

Received my Sprint HTC One M8 Harman Kardon S-Off today and SIM unlocked within 2 hours.

Few things need to be updated in the OP which would help those struggling to unlock and these are basic mistakes. I learnt by trial and error method:

1. Don't forget to set permissions of modded HTCOMADM_SPCS.apk to rw-r-r before restarting (highlight on step 3)

2. Most important - you need to have modded firmaware. For me this method was not working and finally lost hope and thought of flashing some ROM and gave a try to flash modded firmware.

You will find modded firmaware in this link : http://xdaforums.com/showthread.php?t=2729173

I selected "1.54.654.15 Modified Firmware....removed boot, hboot & recovery (fastboot flashable)" in the list and flashed it using the fastboot commands using PC (second method in the firmware post).

Just restarted after that. Wow my GSM signal (Reliance India) was full (obviously I followed all the steps in this thread - like deleting the modded apk and restoring the original. Feeling like I am superman :D
[Sprint HTC One (M8)] christiansfreeman:
Trying to come to a conclusion

ive been in a five day hole trying to figure this out

so your telling me in a nutshell that even if this devices is unlocked I will never be able to use it on native gsm carriers??

its funny cause ive done sprint m7 s in the past and like you said if you update the radio to anything newer than the original radio it wont even detect at&t or t mobile carriers in the radio

when I put my t mobile sim in my sprint m8 and manually search for networks my native carriers pop up at&t & t mobile just wont connect to them

point im trying to get to since the radio isnt bloking out the carriers and I can detect them why will it not connect ?
[Sprint HTC One (M8)] ttn1185:
You can search for networks with any gsm phones even if there are no gsm SIM cards in them.
[Sprint HTC One (M8)] Reuters:
Thank yo, i think this is what i need to do, i dont have GSM 900 as a band to select, and need to open it up in the system.

I have managed to download QSPT and i have also managed to connect the phone and read the data.

However i get "Serious error detected, read from phone aborted" and "warning phone no longer detected in port com6"

Would be very happy for help :)
[Sprint HTC One (M8)] Reuters:
a step further

I got the wrong SPC, the correct link to get a tool to give you a SPC is here:

http://forums.androidcentral.com/sp...te-3-page-plus-selectel-flashing-real-3g.html

Now i can enter "available GSM networks" for example, but it still dont find any network, i think it is the radios and are looking further.
[Sprint HTC One (M8)] Reuters:
Thank You!

I did this and all i can say is THANK YOU, i had tries everything and foloowed every single step succesfully and still no signal. After i downloaded the QSPT and followed your guide it opened up as per magic (after a reboot)

For those of you that are struggling, this is what made my phone open up like magic!
[Sprint HTC One (M8)] k1kee:
Hi, i'm from Chile, and it's been a while since i'm reading this forum, but i never introduced myself...sorry for that.

Well, this guide works just fine on my sprint harman kardon, but i'm having a BIG trouble with the 3G speed... No matter what i do, i can't "receive" more than 0,12 mbps... its looks like the phone is limited to that speed.

I'm using it with a gsm network, and i already check the network settings and the *#*#4636#*#* settings.

Somebody knows something about this? It's VERY VERY weird and annoying, because a phone like this is worthless with Edge-like speed.

Thanks!
[Sprint HTC One (M8)] k1kee:
Fixed!! It was a problem of my carrier.

Enviado desde mi 831C mediante Tapatalk
[Sprint HTC One (M8)] wizard135:
CDMA unlock?

Given that this thread is in the Sprint forum, rather than a GSM based edition of the M8, can I presume that this unlocking method also opens up the CDMA radio? Just got the Harman Kardon edition and I'd like to bring it onto Ting, which uses the Sprint network. However, they officially won't bring this phone over till April 2015. Could I run through these unlock instructions, toss in a Ting SIM card, and be good to go?
[Sprint HTC One (M8)] domt91:
Hello

Hello guys !

I am new to this forum, I've done lots of reading and I believe this is the topic I need to be looking for answers... my question to you is, can you guys confirm me that the method posted here is reliable for unlocking SPRINT HTC ONE M8 for Croatia, Europe?

I am sorry if this sounds stupid to you, but after I've done all my reading I see people get lot's of hicckups and other problems... where can I find the best explained method?

Thank you guys, I really hope you can help me out, I am getting crazy with this SPRINT HTC ONE M8 here in Croatia...
[Sprint HTC One (M8)] vovcheg:
Thank you for instruction!

Just want to share my experience.

HTC One M8 Sprint. Tried changing cid and config.dat method with no luck. Phone still says "invalid sim card". This thread was my hope. Done steps in first post, but no luck again, Sim Unlock Helper app even didn't write anything to log history, so I lost a hope, but tried executing "sim lock" command in app several times, then rebooted phone several times and eventually it became unlocked. Good luck!
[Sprint HTC One (M8)] Zeeking:
I have the same mobile. Which rom was on it before you managed to unlock the sim?

Can you install roms on it?

---------- Post added at 05:21 PM ---------- Previous post was at 05:17 PM ----------

Which stock rom do you have before you managed to unlock the SIM? Does it work on 3G & 4G or 3G only?
[Sprint HTC One (M8)] Torayem:
i tried everything , never able to open that menu , when you hit start nothing happen

**** , i got so nervous and tired , pls help me

ok i managed to open start menu

SIM unlocked the phone

2 hours and phone went back to invalid card , this is killing me any advice pls
[Sprint HTC One (M8)] Torayem:
I sim unlocked my sprint htc on m8 using this method only for 2 hours

then it doesnt show signal anymore

i tried everything phone remain locked only shows APN for sim cards i use but no signal

tried 3 different sim carriers with no success so sim unlocking worked only for 2 hours
[Sprint HTC One (M8)] Torayem:
used all method and finaly sim unlock helper got sim unlocked only for 3 hours then no signal , it was working fine

but now no signal even when you open APN i see my carrier info there so its reading the sim but no signal
[Sprint HTC One (M8)] AsterFenix:
I unlocked my phone and was able to use on gsm network. However, the reception is abysmal, only half of what I used to get with my Galaxy S4 i9500. Can I flash a AT&T or T-Mobile radio listed here http://xdaforums.com/showthread.php?t=2736921 to improve reception on GSM network? Would it brick my phone?
[Sprint HTC One (M8)] domt91:
Thank you once again, amazing job.

So far my SPRINT HTC ONE M8 is working without any problems here in Croatia with the local GSM Carrier.

I hope it will stay like that when I put stock rom.

Thank you once again !
[Sprint HTC One (M8)] Torayem:
No one is supporting this thread anymore
[Sprint HTC One (M8)] killcreek:
Thanks for your kind message

---------- Post added at 11:49 PM ---------- Previous post was at 11:49 PM ----------

I messaged you my whatsapp number. Kindly contact. i shall help you
[Sprint HTC One (M8)] dincdoes.me:
Don't flash another carriers radio you could brick the phone.
[Sprint HTC One (M8)] kailas93:
Not getting 3G

I have unlocked sprint htc one m8 .

I can only use 2g internet but not 3G.

Plz help guys
[Sprint HTC One (M8)] ralliteknik:
Hi All

I've bought a M8 Harman Kardon from Amazon for use in Asia as I dont live in the US.

Can I call up Sprint to ask for a Sim Unlock code even though I'm not a customer's of Sprint?

Thanks in advance!
[Sprint HTC One (M8)] DhavalPanchal:
How did u unlocked it,m on stock 4.4.2 did every steps but cant access unlock menu on simunlock app..Please Help
[Sprint HTC One (M8)] DhavalPanchal:
even i need help sir can u please help me out with the unlocking process
[Sprint HTC One (M8)] killcreek:
Check your PM
[Sprint HTC One (M8)] Vcek:
It should not be sim locked if you bought it from amazon. You can still unlock it manually using the method mentioned, or call sprint(or contact on website) if you dont want to risk breaking your phone. Your phone might connect only 2G/Edge if your country is using 2100Mhz for 3G(you can enable 2100 using qpst)
[Sprint HTC One (M8)] x017in:
Did you reboot as in step 3?
[Sprint HTC One (M8)] DhavalPanchal:
Yes I did..but menu is not getting opened
[Sprint HTC One (M8)] x017in:
Have you done all of the steps before. K
[Sprint HTC One (M8)] dk1988:
QPST 3G
[Sprint HTC One (M8)] Vcek:
try this method it worked with me for Emirates carriers

alternative link for QPST

*to get your SPC/MSL on a GSM carrier (all other methods i've tried give wrong code, especially generators) :

- switch to CDMA/LTE from "Mobile data" settings (no problem even if wont give signal)

- download the app "MSL Reader" by ESCcode from playstore (free, requires root)

- click read MSL

- switch back to GSM/UMTS
[Sprint HTC One (M8)] ralliteknik:
Dropped Sprint an email and this is what they replied. Am really clueless about doing it manually unlike so many of you here so am afraid of breaking my phone. Maybe I'll try one of those Sim Unlock websites for a fee??

Thank you for contacting Sprint regarding unlocking your device. At this time since you do not currently have an account with Sprint, we would not be able to assist.

Sprint Policy requires:

1) The device be currently active on an active Sprint line for 90 consecutive days

2) The account be at least 90 days old

3) The account not be delinquent

4) The account not be on an Account Spending Limit (ASL)

Without meeting these requirements we could not unlock the device. The request is sent out Over the Air on the Sprint Network and that is why the device has to be on our network for us to assist.
[Sprint HTC One (M8)] xeagle24:
Hello, i have an sprint htc one m8 harman kardon, the status of my cellphone is this:

im rooted with android revolution hd-one m8 10.2

s-off with sunshine apk (this because the firewater says that cant don anithing with the phone)

i tried to unlock by imei code but no popup asking for code,

i tried with the flie config.dat and nothing,

i read that this metod worked to a guy, but theres something that i dont undertand, wich root explorer do you use? how i set it up to r-rw ?

please help me with this.

thanks Best Regards.
[Sprint HTC One (M8)] Vcek:
Are you trying to unlock or trying to enable 3G, if you are trying to unlock then there is minimal risk breaking your phone, i unlocked mine using the method mentioned in the first post of this thread

(you HAVE TO REBOOT where it asks you to do so in the guide),

and I also did the config.dat method to confirm(make sure you have S-OFF).

Just make a full backup from any custom recovery, and restore it later to make sure you didn't mess up anything.

As for setting the permissions: I used es file explorer(free from market):

1- open es file explorer

2- swipe right from the left side of the screen

3- scroll down and make "root explorer" to ON

4- go to the file you need to change permissions

5- long press the file name, and choose more from bottom bar, then choose properties

6- to make rw-r-r : choose "change" on permissions,

first row: tick read and write, 2nd and 3rd row tick read.
[Sprint HTC One (M8)] Torayem:
Can anyone explain how to enable 3G overseas , I successfully unlocked my Sprint M8 but all I can use is edge
[Sprint HTC One (M8)] Vcek:
read the few posts above (post 110) on how to enable 2100 MHz band using QPST to enable 3G/H

EDIT: i made a quick illustration on installing HTC Diag drivers and using QPST
[Sprint HTC One (M8)] xeagle24:
i already make root explorer but in the properties theres no "permissions" or "change" can you help again please?

best regards
[Sprint HTC One (M8)] akun07:
Open root explorer and hit button Mount r/w for permission read.write

Backup original HTCOMADM_SPCS.apk and HTCOMADM_SPCS.odex by changing the file name ( anything that is easy to remember ) From /system/app directory

htcomadm.apk rename after reboot revert back

Any solution??

Software Version 1.54.654.15

Thanks
[Sprint HTC One (M8)] akun07:
Anyone....??
[Sprint HTC One (M8)] elmy2424:
Hey buddies can you tell me which versions can be S-OFFed with firewater? i readed that sprint patched firewater in some update, dont know which one...

1.12.651.17

1.54.651.8

1.54.651.10

2.16.651.4

thanks.
[Sprint HTC One (M8)] miggsr:
Wrong thread to ask that question.... But as it stands all updates are not working... I had one with the first on your list which wouldn't work... so you'll need Sunshine S-off
[Sprint HTC One (M8)] Captain_Throwback:
The version isn't relevant to Firewater. Some devices will work, some won't, regardless of which update you're on. You just have to try it, and if it doesn't work, use SunShine. But that's not at all relevant to tis thread . . .
[Sprint HTC One (M8)] padooka:
Worked great for me. Thank you!
[Sprint HTC One (M8)] ralliteknik:
Sim Unlock in Singapore

Hi All,

Anybody kind enough to be able to guide me to somebody in Singapore who will be able to sim unlock M8 Harman Kardon for a fee? I'm not tech inclined so doing this myself is impossible.

Kindly reply this message or PM me. Many thanks in advance!
[Sprint HTC One (M8)] Vcek:
Is it used or brand new?
[Sprint HTC One (M8)] Vcek:
I think it's very safe if you don't mess around with the program.
[Sprint HTC One (M8)] ralliteknik:
It is brand new
[Sprint HTC One (M8)] nelsonTituaAa:
i tried both methods.. i even tried downgrading the modded firmware like a user suggested.. No Luck.. my m8 still reads invalid sim and the sim card app says network locked.. anyone have any suggestions? i am running out of options and time..
[Sprint HTC One (M8)] walle4893:
I currently live in the US. Assuming I get a Sprint M8 but with a bad ESN, will I be able to use this method to unlock it and use with AT&T or any GSM carriers worldwide ? I don't plan on using Sprint network ever.
[Sprint HTC One (M8)] osopol4r:
NO S-OFF Needed for M8 Sprint SIM Unlock

I just want to share with you guys my experience....

I was able to get my hands on one of these Sprint M8 and like everyone else, I wanted my phone to be SIM unlocked (to use it outside the USA). So, I followed instructions provided in the OP but at the S-OFF part I got stuck, since the Firewater method does not work in my phone.

Unable to get S-OFF, I skipped that part only to find out that when you replace the /system/app apk file, when you restart the phone, the changes are not saved, so the SIM Unlock Helper thing does not work. So, I was thinking, why would an app need S-OFF, I thought maybe the original HTC software was somehow preventing a system app to be replaced.

To make story short, I installed Viper ROM, and with root explorer I was able to overwrite the HTCOM... apk (change the .apk permision to allow everything), did a hot reboot, then a full reboot, and the unlock app worked perfectly, tho it crashed in the first attempt but I tried again and it worked!

My conclusion, you need to S-OFF in order to unlock this phone only if you are willing to install another ROM.

Anyway, if you guys need any details, I'll be glad to help you.

Thanks to the OP!
[Sprint HTC One (M8)] Jokester_wild:
Disregard, I was able to get it operational. Working on Bell in Canada. Thanks for the guide!
[Sprint HTC One (M8)] 12manytimes:
Has anyone tried to get this to work Domestically?
[Sprint HTC One (M8)] honest1212:
Hey Thanks. I have couple of M8 waiting for unlocking. My bad that on both the devices, Firewater does not work. You post did give me a hope that if I install custom ROM, there is no need to S-off.

So, if I install http://xdaforums.com/showthread.php?t=2729170, will that help?

Also, what permission is required to be modified? rw-r-r?

Please help.
[Sprint HTC One (M8)] 12manytimes:
Anybody get the sprint m8 to work with T-Mobile or AT&T? Any help would be greatly appreciated :)
[Sprint HTC One (M8)] elmy2424:
What about using TowelRoot For rooting this htc [i haver rooted many lgs and if works in this device you won´t need s-off or custom recovery... or even restart]???

anyone tried it????
[Sprint HTC One (M8)] es0tericcha0s:
Yes, it doesn't work on the newer updates (kernel made after June) and even if it did, it would require a reboot for the other stuff and it'd all be disabled due to the system r/w protection.
[Sprint HTC One (M8)] ozor1:
Hello house..I have the Sprint hk edition. I'm soff , rooted and boot loader unlocked. Currently on stock 4.4.3 Rom..how do I get SIM unlocked, do I need to flash stock 4.4.2 Rom to get the above process to work?.I have tried it and nothing happens when I hit the start button from the unlock app.thanks you all
[Sprint HTC One (M8)] 12manytimes:
Still trying to.figure out if this works for US carriers such as T-Mobile? Anybody?

Thanks
[Sprint HTC One (M8)] ozor1:
Kindly help me please
[Sprint HTC One (M8)] ozor1:
Do I need to revert back to 4.4.2 to run unlock app successfully
[Sprint HTC One (M8)] ozor1:
Ps......
[Sprint HTC One (M8)] christelle868:
4.4.3?

I have a completely stock Sprint HTC M8 with 4.4.3. I just have a few questions before i attempt the unlock to use the device outside of the US with an international carrier.

Would the method described work with this version of android?

If the method is unsuccessful, can i revert the phone to completely stock? i.e. relock bootloader, remove custom recovery and remove root?

If the method works, can I remove root and remove custom recovery and the phone still be sim-unlocked? I want to be able to receive official OTA HTC updates.
[Sprint HTC One (M8)] domt91:
Yes, the answer to all of the questions is positive, have no worries.

Which country are you using it in?

I am not able to install the OTA update because I am not under CDMA (Sprint) network, I use it in GSM network.
[Sprint HTC One (M8)] christelle868:
I will be using it in Trinidad & Tobago (in the Caribbean). If you're absolutely sure this method works with 4.4.3 I'll go ahead and attempt it today and report my findings.

Just a few more questions, I've seen people have issues with their carrier's 3G and the respective bands that their carrier uses. Would i encounter any issues with 3G data with my carrier's bands? (see below)

From my carriers webpage:

If you can't receive OTA updates because you're not on a CDMA network, are there other ways to update/receive them?
[Sprint HTC One (M8)] domt91:
Yes, feel free to go on but however I was not able to S-OFF the device via Firewater but only via Sunshine (25$). It is worth it.

I didn't find any way to install the updates yet while on GSM network here in Europe.
[Sprint HTC One (M8)] christelle868:
IT WORKED!!!!! THANK YOU!!!!!! :victory: