I am very frustrated and looking for some help. I recently bought an HTC One M8 HK but i didn't know it was locked to Sprint. Over the past few days I have been trying different methods to unlock the phone but they haven't worked. My goal is for my M8 to be able to use my Cricket SIM card. So far all I've seen is "Invalid SIM" and other messages like that. I have S-OFF, SuperCID, the MSL code and on a rooted deodexed stock 4.4.4 rom. Can anyone help or point me to a method that works to unlock domestic USA carriers? Really like the phone and would rather not have to sell it.
There are threads based on same topic kindly use them like here and here.
Kindly search before making a new thread.
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jackeagle
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Hi guys,
I am writing because I have a friend in need and xda was more than helpful to me in the past. I have Samsung Note 2 but my friend owns HTC One European(probably) and the phone has a sim lock on it. It is bought in Bosnia and Herzegovina and he came to Austria to live now and phone is of course, not usable. Can you point me please to some unlock methods, free or not? Ive been searching a bit online and all I can find is unlock for HTC One Sprint. He has 4.4.2 now and update is available.
LaMpiR said:
Hi guys,
I am writing because I have a friend in need and xda was more than helpful to me in the past. I have Samsung Note 2 but my friend owns HTC One European(probably) and the phone has a sim lock on it. It is bought in Bosnia and Herzegovina and he came to Austria to live now and phone is of course, not usable. Can you point me please to some unlock methods, free or not? Ive been searching a bit online and all I can find is unlock for HTC One Sprint. He has 4.4.2 now and update is available.
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There is many threads here regarding sim unlock, use the search option. Essentially, he will need to purchase an unlock code i.e from ebay (cost between 10-20$ US). Then when inserting the new sim card, he will get prompted to enter the sim unlock code. The phone must be on stock sense rom to use the unlock code. (some users reported successfully sim-unlocking their devices using arhd sense rom)
alray said:
There is many threads here regarding sim unlock, use the search option. Essentially, he will need to purchase an unlock code i.e from ebay (cost between 10-20$ US). Then when inserting the new sim card, he will get prompted to enter the sim unlock code. The phone must be on stock sense rom to use the unlock code. (some users reported successfully sim-unlocking their devices using arhd sense rom)
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Click to collapse
We have already done that. Code isn't working actually. Is there any way of determining the exact model of it? I've read that some codes don't work for Telenor Serbia or VIPnet Croatia. It's not the network from which he has bought it but it's also not possible that M:tel from Bosnia changed it's model somehow.
I've read a lot of forum topics and checked many unlocking sites, but I can't find a solution to sim unlock my phone. At first I tried at my provider (Telenor Hu), but they asked too much money for it.
I checked the unlocking sites, but the majority says that they can't unlock phones from Hungarian providers (because they change the factory unlock codes I think).
My phone data:
M7_UL S-OFF HBOOT 1.57, rooted, supercid is set and with Sense 6 InsertCoin ROM (6.09.401.11)
Do you know any solutions I should try?
I read about a small circuitry which is placed under the sim card to trick to phone into thinking the card belongs to the locked provider. Have you heard about a working solution like this one?
Thanks in advance: Bandesz
Hello!
I currently have an unlocked phone with S-ON. I know it's quite difficult to get the SIM Unlocked so it would work on other networks without S-OFF, so I have decided to get S-OFF just to get the SIM unlocked.
Before I spend 25 dollars on the Sunshine app, could somebody please direct me to the correct thread? I see a lot of threads here about how to get it unlocked with S-ON, and with a lot of different types. I've tried one, it didn't work so I'm not going to try the others.
I would like to be directed to a thread with a proven / repeated method that works for Sprint m8 with S-OFF.
Thank you. I really appreciate the help and I do apologize since I'm sure this was asked before but I feel rather lost with all these threads. I'm not sure which one is the one that works.
Go check out the General forum. There are SIM unlock methods there that do not require S-off.
Hi,
So I run into that problem eventually.
I am not from the states and I bought the phone unlocked from a friend.
After some months of use the Not a valid sim card popped up.
I contacted HTC support and they didn't know how to fix this.
I am thinking of removing the sprint rom completely and installing the Unlocked/Developer one.
I am not a pro with these stuff so I would like to ask if that would be possible and if I could do something else instead.
The phone runs with 6.20.651.3 marshmallow.
Thanks in advance.
Is your phone s-off ?? U cant unlock the phone just by flashing the unlocked developer version . Try the sim unlocked methods posted in sprint htc m8 general fourms
Sent from my htc_m8 using Tapatalk
Hello, I am very new so I'm a little nervous about posting but can somebody please help me?
I have a Sprint HTC One M8 and I have the unlock code from Sprint, however when I put in my sim card the phone reads "Invalid Card". I think this is because I would like to use the phone with T-mobile, a domestic carrier in the US. If somebody knows how to unlock the phone for domestic carriers and can help me or give me instructions I would be very grateful. I'd even be willing to pay if someone could take the time to figure this out. I have tried the unlock tutorials on the forum, but nothing has worked for domestic.
Miyuki13 said:
Hello, I am very new so I'm a little nervous about posting but can somebody please help me?
I have a Sprint HTC One M8 and I have the unlock code from Sprint, however when I put in my sim card the phone reads "Invalid Card". I think this is because I would like to use the phone with T-mobile, a domestic carrier in the US. If somebody knows how to unlock the phone for domestic carriers and can help me or give me instructions I would be very grateful. I'd even be willing to pay if someone could take the time to figure this out. I have tried the unlock tutorials on the forum, but nothing has worked for domestic.
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Good luck with your research. Domestic SIM unlock has not been successfully done on M8 as far as I know. There were some people did the domestic SIM unlock on M7 back in 2013 and you may want to leverage their work in your try (search in M7 forums). Sprint classified the M8 as international unlock capable and domestic – non capable in their website. M9 and up series have the capacity to get factory GSM unlock to use domestically. Please share your work if you get success.
Unlock capabilities listed by Sprint (check SIM unlock capable devices section):
https://www.sprint.com/legal/unlocking_policy.html
Cashreedhar said:
Good luck with your research. Domestic SIM unlock has not been successfully done on M8 as far as I know. There were some people did the domestic SIM unlock on M7 back in 2013 and you may want to leverage their work in your try (search in M7 forums). Sprint classified the M8 as international unlock capable and domestic – non capable in their website. M9 and up series have the capacity to get factory GSM unlock to use domestically. Please share your work if you get success.
Unlock capabilities listed by Sprint (check SIM unlock capable devices section):
https://www.sprint.com/legal/unlocking_policy.html
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Hi? Can I sim unlock internationally for an m8 already upgraded to marshmallow? Still soff with bootloader still locked?
jazzdglass said:
Hi? Can I sim unlock internationally for an m8 already upgraded to marshmallow? Still soff with bootloader still locked?
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Yes, unlock your bootloader and follow the step for sim unlock
Cashreedhar said:
Yes, unlock your bootloader and follow the step for sim unlock
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Click to collapse
Thank you for your reply sir. Which steps exactly are you referring to?
Because a friend got two sprint m8 relocked after he upgraded them to marshmallow. Is sim unlock confirmed for marshmallow? I see no posts to affirm this sir.