yashsingh1/xdaforums huggingface dataset:
[G2 and Desire Z General] andrewklau:
That is some very exciting news, thank you for the update!

One quick question, when we achieve radio-s off it esssentially would mean everyone could unlock their phones for free?

Thanks.
[G2 and Desire Z General] ms93:
I have 2 ideas, which can help:

1. For people before unlock - maybe performing S-off before unlock will help.\

2. For people after unlock: in bootloader there is "SIMLOCK" option. When you open it, it shows file not found etc. As I think, it can be used to simlock phone for operator, whose numbers are in some file. There is my solution - find what that files are in phone's source code or by any other method, then put them in right place, enter numbers of operator you want to use, open that "SIMLOCK" and lock phone to your network. I don't know if it will work, but it makes some sense.
[G2 and Desire Z General] guhl99:
Your first idea sounds reasonable and I would support it.

Your second idea is something that is worked on, but you do not only need the correct file (which is actually called DMCID.dat) but there also has to be some "magic number" (like on a gold card) on the micro-sd card.
[G2 and Desire Z General] gnormal:
an important piece of info to carryover from other thread:

1- No APNs are listed

2- if you try to define one, it doesnt save
[G2 and Desire Z General] andrewklau:
No APNs being listed is related to the rom more or less, not the issue we're having.

APN is software issue, correct me if I'm wrong so either way it shouldn't pose as an issue to us.
[G2 and Desire Z General] gnormal:
im saying its a symptom that seems to go along with the problem in the title of this thread, so, worth noting.

ie: i think everyone who has the post-unlock no-connection problem, cannot save APNs. all others can.

if you are a counterexample please say so. that would help.
[G2 and Desire Z General] y0:
i have got HTC MEGA SIM and Almost all DIAG files but

T-mobile G2 case =After putting unlock code NO NETWORK cant be solved because when we give s58 clear command it shows SIMLOCK CORRUPTED

i can post the detailed info and pictures if you want it would be a pleasure if could help in any kind of DEVELOPMENT

BTW

if we don t put code in the same version,same country,purchased in the same lot of handsets and use MEGASIM directly without touching anything than it works perfect
[G2 and Desire Z General] andrewklau:
Posting any further details and/or pictures would be much appreciated!
[G2 and Desire Z General] gpou:
So if megasim has failed due to corruption I think that the only way to solve our issue is to write directly to emmc partition holding locking information. And I don't now how easy and plausible this is...
[G2 and Desire Z General] andrewklau:
I think if we get S-Off for Radio, we'll be able to write to that partition. I hope :(
[G2 and Desire Z General] guhl99:
I am a little bit worried about writing this information directly because the partition will be encrypted.

And also copying the complete partition from a working phone or one that is still unlocked will not be an option because the IMEI will also be there and we would not want to overwrite that.

So my hopes are more that there is some kind of a restore procedure from a secure area (I know that Nokia phones can do this, but HTC ?) or that we can lock the phone again with the SIMLOCK option in hboot.
[G2 and Desire Z General] andrewklau:
well I guess time will tell, does tmobile or htc do replacements (or has anyone tried) for phones no longer on a contract or that are now unlocked?
[G2 and Desire Z General] y0:
here we go Pictures first Video coming soon

First Red colour is the error we get on when we try the command

1=clear s58 data

2ND IMAGE is the one when we press the DEVICE INFO

today is sunday not much time will upload the full clear video tommorow and still i have not tried to the all options of the diag maybe it can repair it but sure i will do some more things tomm.

88
[G2 and Desire Z General] wasie:
I have tried to use my HTC vision G2 as I unlocked it but after that I am unable use as I am unable to find anything which would be hlpful for me as I have the first case problem. I just want to know that would it help me that if someone would flash my HTC Vision G2. I just want to know about that as now I am in Pakistan
[G2 and Desire Z General] aZzz.bZzz:
hey guys, i came to the same thing..

entered the unlock code that the seller sent to me, it told me ok, then rebooted and now no network

the 1st page says it solved and shows a link to the unlocking guide, but i cant understand what exactly do in this case. should i simply follow the process of free sim unlocking or what?
[G2 and Desire Z General] guhl99:
Yes, follow the guide at http://xdaforums.com/wiki/index.php?title=HTC_Vision#Rooting_the_G2

It will remove your now corrupted simlock-data and the phone will be sim-unlocked then (and rooted and radio-s-off)

If you don't know how to use adb then look at this thread http://xdaforums.com/showthread.php?t=865685 for help
[G2 and Desire Z General] aZzz.bZzz:
yes, sorted it out already, thanks for reply!

phone works now, just searches for network a bit slower (comparing to hd2)
[G2 and Desire Z General] qfox:
the simplest way

I am from India and called for 2 phones with unlock code and no network.

Yes there is something such as a mega sim or factory card,

a special sim and memory have to be inserted at the same time and it takes precisely 30 seconds to put the 's off'.

I could not believe how easy it was.
[G2 and Desire Z General] wasie:
I want to really thankfull all the persons who did all this great job.

First i was in Pakistan and at that time i dont have enough time to do that.

so i send someone else my Tmobile G2. he did that job for me. i dont know what he did but after that my phone starts working & it costs me round about 50 bucks to do that.

Now i am here in USA. and i got new HTC Tmobile G2 Which locked is to t-mobile

Though i did not try other sim other than the Tmobile but after doing all the work which is defined by Ghul and Scotty my phone still works with Tmobile.

but i will tell you later on after trying another sim.
[G2 and Desire Z General] mdraeger:
Hey,

Since the last post was in February, I just wanted to ask if the problem still persists or if HTC changed something with some update in the meantime?

I am just asking out of personal interest since I am on a trip in europe and already got the unlock code from T-Mobile but i am now hesitating a bit to try the unlock code, also since I don't have access to any windows computer, I cannot use either of the two workarounds right now.

Best regards

Marius
[G2 and Desire Z General] guhl99:
Hi!

We did not see any new cases of this for quite some time now,

But in case that it happens to you, the only thing you have to do is to free your phone using gfree. (see http://xdaforums.com/wiki/index.php?title=HTC_Vision#Rooting_the_G2.

This rooting procedure will also repair (or better remove) the corrupted simlock data.

But as said, I don't expect problems anymore, just be sure that you are patient when the phone reboots after you entered the unlock code. By no means interrupt this by pulling the battery.

If you do experience problems: try to find me or some of the other knowing guys at the #g2root channel on freenode. We can and will help you.

(and you don't need a windows computer to use gfree)

Have fun - Guhl
[G2 and Desire Z General] mdraeger:
Thanks for your reply, i just tried it and it worked without a problem, so either they fixed something or i was just lucky.

Works great with HSDPA speed on the german O2 network.

Thanks again,

Marius
[G2 and Desire Z General] edgarzin:
Hi guys,

I will sell my g2 which is fully functional thanks to you.

My question is:

If i factory reset my phone will i loose root and this process too? Is there a risk the phone can show this problem again?
[G2 and Desire Z General] PaganAng3l:
Both questions: No
[G2 and Desire Z General] edgarzin:
Thank you friend, ill factory reset the phone!

One more question: can I update to gingerbread (official) too without worry?

Thanks again.
[G2 and Desire Z General] edgarzin:
It worked!! sorry if i was afraid :D
[G2 and Desire Z General] guhl99:
No, flashing any other firmware will not help you with the problem at all at the moment.

Neither the original G2 firmware nor any other firmware like the DesireZ one.

As you are at least close to India i would like to point you in this direction http://forum.gsmhosting.com/vbb/f606/htc-g2-t-mobile-no-network-after-unlock-1128025/. Read the posting number 11 in this thread and maybe contact Raul.
[G2 and Desire Z General] nicky.m:
Will there be any solutions in the near future?
[G2 and Desire Z General] he3r0:
This is not a working solution for "no network list issue."

Though it happened to my first phone, i was lucky enough to get it replaced (after a big fight in tmobile store) for a new one. Since then I left usa and im not expecting to be back anytime soon. Witch means i was overseas with locked phone.

My first phone got unlock code directly from tmobile - after putting it, I`ve got issue from this thread.

Second unlock code i bought from ebay, since tmobile said i have to wait 3 months for another code... (?!)

Anyway, I did manual OTA on my prone, than permarooted and did S-OFF

and than bravely put the other sim, asked for code, so I typed it* and it worked.

now i dont really known what had helped, OTA or Root & S-OFF, or both, or I just had a luck?

*) noticed quite weird thing while typing code from keyboard, when I doubletapped ALT key to type numbers, they constantly rearranged, so when i pressed 4, on the screen it showed 6, than 9, than 5, depending how many times i pressed that 4.... but it did not happened when i kept ALT key pressed continously.

Good luck
[G2 and Desire Z General] marvinmartinez888:
Has anyone tried this on their phone?
[G2 and Desire Z General] andrewklau:
I was stupid enough to try this on my phone pre-ota when the ota was already out, and it seems more people now are having luck unlocking post-ota.
[G2 and Desire Z General] tysklai:
How did you fix your phone??
[G2 and Desire Z General] andrewklau:
I haven't...I'm just saying people who have tried based on their forum posts.
[G2 and Desire Z General] nicky.m:
Did all of you guys pull out the battery impatiently during the unlock?

Is this a lethal step in the procedure?
[G2 and Desire Z General] he3r0:
i did. But I was waiting for more than 5 minutes...
[G2 and Desire Z General] escape.g:
Hi, I did the same work and I have the same problem....

I have not removed the battery while waiting
[G2 and Desire Z General] gpou:
The correct procedure is to wait phone to reboot. But some people after five or more minutes pitied out the battery and then retried the whole procedure. Most people waited for reboot and everything worked properly. But in some cases (like mine) the phone rebooted as it was supposed to do and after that couldn't register or even find any networks. It's a pity as I use my phone now only as a PDA and it has many potentials.
[G2 and Desire Z General] nicky.m:
Same here. I did pull out they battery too.

I was wondering if that's critical. But the idea has seemed to be dismissed and disproved.

Like you and many other users, I love my g2 and to enjoy it with full functionality.

Anyway, be faithful to those developers who has been trying hard for a fix.

Good day folks
[G2 and Desire Z General] gnormal:
exactly my story.

i called TMO yesterday. they said "remorse period is over". i said "this has nothing to do with remorse! your unit is defective!" they put me on hold for a while and then said if it's defective then i have a year to exchange it, but it has to be via mail, and must be a usa address.
[G2 and Desire Z General] nicky.m:
I've tried to approach tmo too.

The agent said I have to be a Tmo customer to be offered a replacement. Even when I asked if my friend in the us could help me, the person said it's a no.

So I don't think a non-Tmo user can have replacement.
[G2 and Desire Z General] tysklai:
What if a tmobile customer who had brought the G2 from Craigslist will they exchange the phone?
[G2 and Desire Z General] nicky.m:
I'm not sure. Not fimiliar with warranty policy of us carriers.

Try making a phone call or having a live conversation online to see what they can help.

EDIT: additional thing - some lines from the conversation with Tmo agent. Hope it can give you some clue.

Me: oh, what if a fd of mine is in the us? can the person help me with the replacement thing

Agent: Unfortunately, no that will not work because that will void your warranty, by transferring the device to another mobile number.

Me: a replacement is only for users with a t-mo number?

Agent: Yes, that is correct. You will need to have an account with T-mobile.

Good luck
[G2 and Desire Z General] nicky.m:
Any post-ota unlock failure up till now?
[G2 and Desire Z General] y0:
Me also fixed the phone but unfortunatly it need the MEGASIM so no help to share:(
[G2 and Desire Z General] nicky.m:
Where are you located and where did you get the megasim from?
[G2 and Desire Z General] gpou:
A person above said that even with a megasim the phone could not been unlocked because locking info was corrupted....How you did it???

Where did u find megasim?
[G2 and Desire Z General] guhl99:
He is the person above ;-) (never mind the nick)
[G2 and Desire Z General] guhl99:
Could you still be so nice and share how the procedure to fix the problem works when you have the MEGASIM.

It could help people like me who are working on a way around the MEGASIM to analyze the procedure in the code.

If you do not want to make this public than please PM me.

Thanks
[G2 and Desire Z General] gpou:
My bad :)

So i am confised

Megasim solution worked or not after all...I had the impression that after the corrupted error message there was no solution....Please update :)

ps @guhl99 any more ideas to try to my phone while waiting????
[G2 and Desire Z General] guhl99:
Bring back the unlock screen (if you really want)

Hi because people are PMing me about how I brought back the unlock screen.

You can find instructions and the necessary file here:

http://www.thinkthinkdo.com/trac/project1/wiki/libril

But as I already said a multiple times:

- The unlock will fail

- Your @LOCK_TIME counter for the SIMLOCK will increase.

So don't try it more then once.
[G2 and Desire Z General] guhl99:
First:

The MEGASIM solution definitely works, there are already several other successful cases in the world. But I in person don't know the exact procedure cause I do not have a MEGASIM and the diag-software.

There is a guy called Raul at http://forum.gsmhosting.com/ he is/was selling the MEGASIM. So maybe he is willing to share some information how the procedure works or where one could find someone that has the MEGASIM

Second:

Nothing to try at the moment.

I myself am doing two things in parallel (besides catching the flue which kept me in bed and quite for some days and besides my job):

1. I work on a TurboSIM and/or RebelSIM solution.

On the TurboSIM myself and a RebelSIM, that claims to be able to unlock the Desire-Z including 3G, is on the way to me.

But as you know the SIM-slot of the G2 is extremely unfriendly for TurboSIM type solutions and I ruined already 2 of them so now I built an SIM extension Cable to an external SIM-socket so that I can change SIMs easier and this helps debugging.

2. I am disassembling the radio firmware to find a way to achieve radio S-OFF or reapply the SIMLock or something similar.

This is a very slow process and I would say that the disassembling is about 40% complete. So don't expect any solution from this procedure fast (at least from my side, but there are other people working on this too)

So much from my side. I am off to a business trip till mid next week but lets see if I still can make some progress
[G2 and Desire Z General] y0:
its doest matter mate where i am but if you are interested i can help you buy MEGASIM

sorry for that i have changed my NICK after that post i am the same person reporting error previously if you wanted to buy megasim you can PM me

the New DIAG file my friend gave me infact it shows the same error exactly like previous but problem is fixed i mean NETWORK CONNECTIONs OK

i cant share the DIAG files because i am having the updated files on one single condition--->do not share with any one

BTW

you can contact me on RAUL.HONGKONG@GMAIL.COM
[G2 and Desire Z General] he3r0:
T-Mobile knows about problem, and they suck donkey balls,

They do nothing about it.

Let's consider a scenario.

I'm walking to the T-Mobile store, as a non T-Mobile customer, and buying a

New and shiney G2 for a full price. Without plan. I known that it is possible..

And than what, no warranty? Because there is no plan for the phone?

Bull**** my friends. Unless they will be hiding behind non transferrable warranty, they have to

Repair/replace your phone. In the USA that is. I have not read my warrany terms, but I doubt it would work outside origin country.

Again, T-Mo sucks, and try to scam you out of your rights. Call anybody you can, take all their time, ask to talk to their managers, and if that will not do, go higher. Be a pain in the ass, till you get something.

Ps. USA contact person would be a great help, so if you have a buddy that can help, that's awesome.
[G2 and Desire Z General] nicky.m:
Chill out buddy.

Btw I personally am not satisfied with Tmo's reaction that is nth at all. They didn't give a official statement, explaining what happened, did they?

Nor did they say to frustrated users they were trying to do anything to fix the failure.
[G2 and Desire Z General] andrewklau:
Has anyone contacted HTC? I did and they gave me North America call center number, but as I'm not in the US the international call will be too expensive.
[G2 and Desire Z General] gpou:
HTC's replies are even worst than T-mobile's

HTC's customer service after advising me to perform a hard reset said that there is nothing for them to do and that sim locking and unlocking procedure is T-mobile's responsibility
[G2 and Desire Z General] andrewklau:
How much is megasim?

Thanks.
[G2 and Desire Z General] andrewklau:
Well.. I was given the US Repair Center Phone number for where I'm able to send my phone in for repairs. The only thing is I have no plans on making an international call...

(Anyone know any VOIP free calls to US Toll numbers?)
[G2 and Desire Z General] gnormal:
i can call anywhere for hours.

give me the number and the agenda.
[G2 and Desire Z General] gnormal:
someone please help by defining these for me.

what is:

- megaSIM

- turboSIM

- rebelSIM

- goldcard

- smartcard

- smartsim

i know a guy here in manila with a "goldcard" (it looks like an ordinary sim to me). he said it "works" for all htc phones, but not G2 because G2 was too new. i had the impression that if he had the newer version then he would have the knowhow to try fixing the G2. he mentioned that he fixed a G1 before with the same problem (not connecting).

i want to use him but i also want to know about the process before i trust it. so if you can define those terms above and/or explain the process referred to, that could help me to find out more this weekend.

thanks
[G2 and Desire Z General] hersam:
I have same problem after unlock my new T-Mobile G2, for use in Indonesia Provider.

Unlock process successful and on the first time after reboot some network can be search, but after that it's totaly no service.

I check to test to read contact from Simcard and exported and found no problem.

Is the problem on the radio hw, or radio kernel or any others ?

Pray that someone in this forum can help me to make this "great" phone (that first I have :) ) can work.

Rgds
[G2 and Desire Z General] gpou:
Turbo SIM and REBELSIM are very thin cards that are put between the simcard and the phone and spoof a CID so phone is fooled and thinks the sim you entered is eg. T-mobiles if you have a tobile sim locked phone.

MEGASIM is a smartcard looking like a normal sim but once entered in a locked phone it enables you to run specific diagnostic software and you can unlock any simlock in a phone. The megasim normaly is used by htc's repair centers but somehow some people got some. In order to work you will need the megasim and the special DIAG files. You can buy it on internet but as far as i know its too expensive.

@guhl99 http://www.androidpolice.com/2010/1...-t-mobile-g2-mytouch-4g-and-droid-incredible/ HTC released source code of T-mo G2. Is this helping us at all. Also if you need any assistance or just a phone guinea pig just ask me.
[G2 and Desire Z General] hersam:
Will S-OFF or Permanen root phone after, phone Unlock will resolve this problem ?

Any body have try this ?
[G2 and Desire Z General] amarsana:
after OTA updated, S-Off unlock code, anyone tried this yet??? Guys please help me, I've got 3 freakin useless bricks called G2
[G2 and Desire Z General] nicky.m:
that's really disaster.

what were your unlock steps?

did you do the same procedure for all the phones?
[G2 and Desire Z General] gpou:
Aparently the only solution so far is to buy megasim. But its too expensive :(
[G2 and Desire Z General] strezac:
So how much is that megasim? Will it fix our problem?
[G2 and Desire Z General] gpou:
Yes megasim can unlock our phones. It's really expensive. About 2000$. Contact Raul at Raul.hongkong@gmail.com

If you would like to buy just to unlock your phone I believe it's very expensive. But if you would like to do business and unlock phones then go on. And count me as a customer :)
[G2 and Desire Z General] nicky.m:
I could buy several deivces with $2000 so buying a brand new megasim would be the last thing we think about.
[G2 and Desire Z General] nicky.m:
I still believe in developers who has been doing their engineering. ;)
[G2 and Desire Z General] gnormal:
Do you know the process with a megasim? I might know a guy with one ifits the same as a goldcard. But not.sure itrust his method is itstraighforward?
[G2 and Desire Z General] gpou:
It seems pretty straight forward to this video: http://www.youtube.com/watch?v=nLFqGKzrtyg
[G2 and Desire Z General] hersam:
Any Update on this Issue ?

I have try combination to re-update manual OTA but the problem still there

Phone Information said : No service, No signal detected.

Can I apply again the unlock code using serial command ?

Will this command brick the phone.

Thanks for help
[G2 and Desire Z General] lozzd:
I know this won't help those of you who already have a G2 with this issue but here's an interesting point for you...

I went to the US recently and have been waiting for the G2 since I got my G1. After reading the original thread about this issue, I was a bit worried.

So I just bought the phone from Expansys: http://www.expansys-usa.com/t-mobile-g2-android-smartphone-t-mobile-locked-203955/ and shipped it to the address I was staying in the US. Not sure if they ship abroad in this occasion, or how much I paid, but the box was open and fully T-mobile branded and past the setup wizard, indicating they had indeed turned the device on to unlock it.

I wonder how many bricked G2s they have? Unless they have a better way of doing it.. perhaps that could be of help to the people trying to fix their G2s?

or at least, if you don't want the hassle, buy from them :) Worked great for me and the G2 is AWESOME.
[G2 and Desire Z General] dbshane:
Anyone tried unlocking G2 after the ota?

I got my tmobile G2, and I really want to unlock it, but I dont want it become a ipod touch like thing. So I'm just wondering if anybody failed unlocking after the ota released.:confused:

Thank you,

Sheng
[G2 and Desire Z General] nicky.m:
For people planning to have a new g2, they are advised to ask the seller to kindly unlock for them. It is to avoid further inconvenience, in particular to oversea users.
[G2 and Desire Z General] andrewklau:
I'm going to be calling up the HTC repair center tomorrow, hopefuly we can get some sort of answer from them.