yashsingh1/xdaforums huggingface dataset:
[G2 and Desire Z Q&A, Help & Troubleshooting] jashsu:
After you entered the unlock code, you got a pop up message saying something to the effect of "Unlock code successfully entered, rebooting device." Did the device instantly reboot for you or did it take a while? I'm curious as my device just sat there for five minutes before rebooting.

Edit: I should note that I cannot test my device with my foreign SIMs right now, but my T-Mobile connection is working fine post-unlock. Also, it might help to read through this thread. More anecdotal experiences with G2 on other networks in there.
[G2 and Desire Z Q&A, Help & Troubleshooting] hmfic:
Doesn't work period, the T-Mobile sim card doesn't work either anymore.
[G2 and Desire Z Q&A, Help & Troubleshooting] gpou:
The device took about 1 minute or so to reboot. And after that not even the original TMo card is working. Where did u get your unlock codes?
[G2 and Desire Z Q&A, Help & Troubleshooting] jashsu:
I didn't mention because I assumed that as long as it works (meaning the popup said the unlock was successfully entered) then it doesn't matter what the source was. I got my code from T-Mobile, who in turn requests the codes from HTC.

I unlocked by inserting a friend's AT&T sim. Strangely, the device didn't give me the unlock dialog at all when I inserted a Chunghwa Telecom (Taiwan) sim. It couldn't register to any networks when my CHT sim was inserted. However, I did not have a "no sim inserted" error in my notification bar, so it's not the same as your situation, I think.
[G2 and Desire Z Q&A, Help & Troubleshooting] gpou:
I have tried every solution i can think with no results. I just hope it isn't a hardware fault a it is very difficult for me to return the phone to T-mobile and get a new one
[G2 and Desire Z Q&A, Help & Troubleshooting] gpou:
Its the same. I dont get a no sim error. Sim is found. But network search is dead :)
[G2 and Desire Z Q&A, Help & Troubleshooting] rburg45:
Try looking up the APN settings for your network and enter them under Wireless and Networks under settings. I had a similar problem with AT&T when I first unlocked. I had signal but no data.
[G2 and Desire Z Q&A, Help & Troubleshooting] hmfic:
We get no GSM signal whatsoever. Just shows the "x" next to the cellphone signal. Also getting to *#*#4636#*#* menu shows that both CID and LOC fields are unknown. I also tried to do the sim lock from the recovery menu (press volume down with power key) and it gave me errors as some files are missing, so I'm guessing the unlock did happen but it didn't write something somewhere.
[G2 and Desire Z Q&A, Help & Troubleshooting] gpou:
Excactly my friend. It cannot read properly the sim properties so it cannot find MCC/MNC and CID of our networks. The error you get in SIMLOCK IS

MCCMNC FILE MISSING

CID FILE MISSING

And another thing i noticed. In a properly working android phone when you create a new apn the MCC and MNC fields are automaticaly filled. But in our case they are blank...
[G2 and Desire Z Q&A, Help & Troubleshooting] jashsu:
Your problem isn't similar at all. These guys can't get signal or data. Network scan turns up nothing.
[G2 and Desire Z Q&A, Help & Troubleshooting] gpou:
To be exact network search returns an ERROR. :eek:
[G2 and Desire Z Q&A, Help & Troubleshooting] rburg45:
Yeah my bad, didn't realize their problem was so severe. :/
[G2 and Desire Z Q&A, Help & Troubleshooting] Bishybob:
I have a similar problem except mine is temporary. When I unlock the phone I have no connection. Shows an X on the tray. Try enabling airplane mode and disabling it and still the same. I have to reboot the phone in order for it to connect again. It's only happened twice so far, but was annoying. Hope it doesn't get worse.

I am still using the old SIM card from my Cliq, which was in my Sidekick before that. If it happens one more time I'm going to install the new SIM that came with the phone and see if that helps.

Edit:

Nevermind... My phone is not unlocked. I read the post wrong.
[G2 and Desire Z Q&A, Help & Troubleshooting] gpou:
Unfortunately no solution yet. I have read here that an OTA is rolling out. Let's hope it could something when received :)
[G2 and Desire Z Q&A, Help & Troubleshooting] hmfic:
How you plan on getting OTA if our phones are not even connected to the cellnetwork??? Just leave it on with wifi???
[G2 and Desire Z Q&A, Help & Troubleshooting] gpou:
wifi or someone will post a download link.

So far pleople with the same problem as us are increasing.
[G2 and Desire Z Q&A, Help & Troubleshooting] gpou:
D/RILJ ( 5176): [0085]> QUERY_AVAILABLE_NETWORKS

D/HTC_RIL ( 1350): ril_func_get_avail_networks():called

D/HTC_RIL ( 1350): (t=1286918594)>> AT+COPS=?\r

D/HTC_RIL ( 1350): (t=1286918594)<< +CME ERROR: 30\r

D/RILJ ( 5176): [0085]< QUERY_AVAILABLE_NETWORKS error: com.android.internal.telephony.CommandException: G

ENERIC_FAILURE

This is the error through logcat for RADIO
[G2 and Desire Z Q&A, Help & Troubleshooting] guhl99:
Having the same issue

I noticed in addition that there is a difference i the SIM-lock is enabled or not.

When it is not enabled the "SIM error" icon does not appear and the radio symbol is an "x"

When it is enabled I am asked for the PIN at boot and after I enter it the "SIM error" icon is also shown.

So at least the phone seams to be still reading the SIM but that's about it.
[G2 and Desire Z Q&A, Help & Troubleshooting] gpou:
I am afraid that the unlocking process includes the write lock of the portion of the memory that holds the locking information.

So it may be just imposible to rewrite the lock status.

Just a guess and i hope tha i am wrong
[G2 and Desire Z Q&A, Help & Troubleshooting] mauaus:
If thats the case we really need full root
[G2 and Desire Z Q&A, Help & Troubleshooting] bluemoko:
I can't do anything guhl99 as my second G2 come unlock, as the seller had unlock it for me and it work out of the box.

Anyway i'm still stick here to revive my first G2.
[G2 and Desire Z Q&A, Help & Troubleshooting] jonragnarsson:
I don't know if this helps anybody here, but I found unlocked G2's here: iunlock.com. The guy got it through his 'supplier' whatever that means... :)

If you are in Boston, it might be worth to pay him a visit.
[G2 and Desire Z Q&A, Help & Troubleshooting] amarsana:
g2 unlock problem

i have the same problem with you guys. bought an unlock code for 25$ and the phone cannot find any network now. i just read about temp rooting app called visionary. does that help at all? or not??

appreciate your help. and much love and respect to the guys who are working on resolving this issue.
[G2 and Desire Z Q&A, Help & Troubleshooting] mauaus:
Im in El Salvador so returning the phone in case something goes wrong is not an option... Im receiving my G2 on friday, i already got my unlock code from a friend with a T-mo contract that called with my device IMEI... My question is should i risk unlocking it as soon as i get it (friday) or should i wait till this gets sorted out?? Perhaps on the next update 2.3 or gingerbread or whatever...
[G2 and Desire Z Q&A, Help & Troubleshooting] guhl99:
Never mind, at least you have got a working G2 now! Thanks for the offer anyway.

Have fun
[G2 and Desire Z Q&A, Help & Troubleshooting] nickym1hk:
Hi there

From aother polling threads this forum I know that the limit of unlock before permanent lock is three.

So, I tried 3 times

1st: thin patience and pulled out battery

2nd: waited for a success reboot (probably, didn't pay much attention) but unlock screen still came out

3rd: as the previous trial

Finally, no signal.

And the thing I worried about is that after my three failed (?) trials, would it still be possible to bring the unlock screen up again.

Another is that I brought the device from the ebay and I'm outside the u.s., so it should be quite unfeasible to deal with t-mobile for a new device.

Anyway, thanks for any contribution from any one of you.

Good day.
[G2 and Desire Z Q&A, Help & Troubleshooting] marvinmartinez888:
I just hope there's a quick fix for this. i have 3 of G2.. im really worried that this cannot be unlocked.
[G2 and Desire Z Q&A, Help & Troubleshooting] mauaus:
Wait, so you have 3 phones with no reception right now??
[G2 and Desire Z Q&A, Help & Troubleshooting] Lennyuk:
Hi there.

I am just an outsider at the moment, VillainRom are thinking of getting several G2's for our European Members however while doing research I came across this issue and its putting us off due to the fact we nearly all use networks other than t-mobile.

Don't flame me as you may all have come across this idea already and failed but I thought maybe you need to go to network settings and force it onto your new network? maybe the unlock caused an issue with the "automatic" detection (or vica versa)

Again sorry if this is already suggested.

Plus can someone let me know how many phones this seems to affect? is it a large number, as in, is it best for us not to get G2's and just wait for the release of the Desire Z instead?

Thanks
[G2 and Desire Z Q&A, Help & Troubleshooting] guhl99:
Hi!

I won't flame you but of course this has already been tried.

No one knows how many phones with this strange unlock problems exist.

But the real thing is, that if you intend to use the phones mainly in Europe then you should probably wait for the Desire-Z.

The G2 supports the frequencies 1700/2100 for G3/G4 but all European Carriers us 1800/2100. This does not mean that the G2 will not function in Europe but it will suffer from limited G3 channels more then the Desire Z because it can not use all available G3 frequencies.

For me the Desire Z is not an option because i don't like the HTC Sense-UI.

And as long as there is no permanent root there is no way to install a different ROM that is not based on the HTC-Sense-UI.

But I think all this does not belong here.

If you still want to go with the G2 -> buy them unlocked.
[G2 and Desire Z Q&A, Help & Troubleshooting] mauaus:
Guhl99 in your honest opinion do you think this can be fixed anytime soon? Would it need a full root to do so?
[G2 and Desire Z Q&A, Help & Troubleshooting] mauaus:
I just finished chatting with a Tmo customer service rep, this is what he told me on the issue:

He said theres no ETA at the moment but lets hope its sorted out soon :)
[G2 and Desire Z Q&A, Help & Troubleshooting] lozzd:
As someone who is planning on going to the US soon and going to buy one of these devices this is good news. However, what you say about that bands is concerning.. I thought most modern phones (GSM at least) all had support for all the bands? Will this stop 3G/HSDPA working in the UK?

I also don't want HTC Sense so want a G2 rather than a Desire-Z.. Since the hardware is the same, do you think there is any chance the G2 ROM will flash on the Desire-Z?
[G2 and Desire Z Q&A, Help & Troubleshooting] androidgeekit:
The problem has never been compatible networks. Before enter the unlock code, my G2 has identified all four Italian operators (Vodafone 2G/3G, Tim 2G/3G, Wind 2G/3G, H3G 3G only). T-Mobile G2 supports Band I.

We hope find a solution soon guys!! :)
[G2 and Desire Z Q&A, Help & Troubleshooting] marvinmartinez888:
G2

Yes , i bought 3 units.

Phone 1 - Asks for the unlock code (I put it in, saying its successful then prompts reboot immediately.)

Phone 2 - Doesn't ask for the unlock code anymore but it still says that "No Service"

Phone 3 - Doesn't ask for the unlock code anymore but it still says that "No Service"
[G2 and Desire Z Q&A, Help & Troubleshooting] manee:
guys, i also have three phones with no sim card accepted, one which is asking the code every time , then restarts and asks the code, remaining are working fine with 3rd party codes not bought from t-mobile. here is the procedure which worked after making above phone unfunctional.

1. Power on the phone without SIM Card and configure the initial setup unless you come to the home screen.

2. Turn Off the phone then and then insert the SIM card, once the phone boots up , open the keyboard and enter the code by pressing SHIFT key on the keyboard and Keeping it pressed all the time when you enter code digits.

3. The phone says Code accepted, restart the phone by pressing ok and keeping the phone Keyboard OPEN.

4. The phone takes 2-3 min to restart, be PATIENT even if takes a little longer.

5. The phone starts and the SIM Works then, every SIM Card.

Note: I have tested this on remaining more than 20 phones, no problem so far except the 4 which were messed up earlier.

Dont Do these

1. Hard Resetting the phone before unlock.

2. Enter the Password from On Screen Keyboard.

3. Removing the battery if the phone takes longer to shutdown.

I hope this helps :)
[G2 and Desire Z Q&A, Help & Troubleshooting] deathofdemigod:
done... :mad: T-MO

Нardware keyboard didn't worked as it should - i tried all combination of keys, but pressing key resulted some random digit, and there were no digit 1, that was in my unlock code.

Phone hanged for 8 to 10 minutes, so i removed battery.

TMO rep: asked to do factory reset, reset didn't gave any effect, so he recommended to bring phone back to store.

Did anyone on the forum exchanged "unlocked" phone to unlocked phone that works at store? For me sending g2 from Ukraine to USA is not nice option (it could take a lot of time.

I adore my G2, literally i waited for model like that for year or may be more.

It works perfect on everything, everything but the phone.
[G2 and Desire Z Q&A, Help & Troubleshooting] mauaus:
Whats the longest it can take?

Should deathofdemigod have waited longer than 10 minutes??

Heres the email i received from HTC about the issue:

Not very helpful
[G2 and Desire Z Q&A, Help & Troubleshooting] mauaus:
Im gonna go ahead and buy a turbosim for $6.99 on ebay, hope it works while a solution is found... Does it at least work to make calls even if 3g/edge doesnt work?
[G2 and Desire Z Q&A, Help & Troubleshooting] manee:
the max G2 took for restart was 15 minutes. I hope that helps
[G2 and Desire Z Q&A, Help & Troubleshooting] sovereignty68:
i have a device stuck at shutting down for 30 minutes or so already after unlock. rebooted the device, tried to enter it with physical keyboard and leave it open did not work either. any idea how to make it work? still stuck at shutting down.
[G2 and Desire Z Q&A, Help & Troubleshooting] sovereignty68:
I don't know what did I do but I got it working after 4th try. I entered the code with physical keyboard and left it open, but it was stuck at "Shutting down..." like before for about 5 minutes. So I start playing with the keyboard, close it, open it, see the backlit lights up, pressing the power button, unplugged the usb cable from the device until the circle next to "Shutting down..." stopped spinning which I assumed it hangs. so I thought this time it must failed to unlock again and about to go for 5th try. this time, I removed the memory card, put in o2 sim instead of at&t sim, turned on the phone.... it didn't ask me for the unlock code. I was surprised. So I replaced the sim with my t-mobile sim, and signal is there, then I replaced the sim with at&t sim, att signal shows up and tested call for a minute.

I really don't know what did I do to get out of "Shutting down..." problem and without having no service issue.
[G2 and Desire Z Q&A, Help & Troubleshooting] marvinmartinez888:
any luck?

any luck on your device? im really desperate in having my phone unlocked. my 2 other devices doesnt ask for the codes anymore. the 3rd phone keeps on asking for the unlock code, i have been inputting it like forever. still no result.
[G2 and Desire Z Q&A, Help & Troubleshooting] lecosr:
Guys i have a G2 i tried to unlock it but now i cant connect to any network.

is there a way to put this phone to at least recive and make phone calls untill a fix comes out?

i bought it in the US but i live in brazil, is there going to be a fix for it ? or should i send back to my frind so he can try to get another one for him there?

thx for those working on this problem. i dont have knowlodge to do anything but ask.
[G2 and Desire Z Q&A, Help & Troubleshooting] nycjv321:
hrm...

How long have all you had your phones? I called in to get my unlock code and they said they would email me instructions. The instructions told me that I had to wait another 40days... Ive had the phone for about 2-3 weeks. Maybe its T-mobiles way of blocking those who circumvented lock period?
[G2 and Desire Z Q&A, Help & Troubleshooting] jashsu:
http://support.t-mobile.com/doc/tm51885.xml

Once they do process your request, the code should arrive in about 24 hours.
[G2 and Desire Z Q&A, Help & Troubleshooting] marvinmartinez888:
The problem is not really getting the codes but it phone doesn't get any signal after unlocking.
[G2 and Desire Z Q&A, Help & Troubleshooting] guhl99:
Just for Info

From all my current informations from various sources, HTC is aware of the problem and there should be a solution by HTC via radio update.

This problem also seems to be connected to the delay of the Desire Z deliveries.

But don't take it for granted it is just second hand information from people working for carriers.

So lets see and wait.
[G2 and Desire Z Q&A, Help & Troubleshooting] mrmike69:
Same thing here! HTC, what a joke!

Did the G2 sim unlock code and let it reboot on its own...... NO SIGNAL!

I spent over an hour on the phone bouncing from tech to repair at HTC, WHAT A

JOKE! The final word I got from them was that the G2 was not supported yet!

They said the have no repair center for the G2 because its too new! The only

thing I could do was do a ticket for an unsupported device and check back in 2-3

WEEKS to see if they can do something for me! I asked if I was talking to HTC and they said yes!

I then asked to talk to a supervisor and one would not even come to the phone! The supervisor just told the rep what to say!

I asked several times if this was a JOKE!

So now what? I hope someone can find a fix for this! Mike.
[G2 and Desire Z Q&A, Help & Troubleshooting] Junior-J:
For everyone wondering...THIS WORKS!

I bought my G2 this week off ebay and it came with unlock instructions from tmobile. I used an "MTN" sim card btw. I proceeded to attempt unlocking it without knowing of the troubles involved. After entering the unlock code with the onscreen keyboard and pressing ok, it didn't reboot. I ended up taking the battery out and when i turned on the phone again, it went straight to the homescreen and I had "NO SERVICE" at the top.

That's when i came here and figured I was screwed. Well, i decided to try turn the phone off and insert a different foreign sim card and I was presented with the "enter unlock code" screen again. I unlocked it again...this time using the physical keyboard. After waiting for a couple of mins, i noticed..once again, it wasn't rebooting. I decided to mess around with the phone (i.e. press the power on button, close/open the physical keyboard, etc) and I noticed the screen turned black with the backlight still on). After about 15-20 mins, it just went completely off. Thought I was entirely screwed.

To cut a long story short. I decided to follow manee's "exact" instructions including turning on the phone without the sim and re-ruinning initial setup. DO NOT touch the keyboard while the phone is unlocking. After i had entered the code in, following these instructions, it took about a min and half b4 my phone restarted and boom, unlocked. Tried/tested with 4 sim cards, including tmobile...and it works beautifully. manee FTFW! :DD
[G2 and Desire Z Q&A, Help & Troubleshooting] ayliepx:
Now, I have already unlocked by soft keyboard. How can I re-unlocked it?
[G2 and Desire Z Q&A, Help & Troubleshooting] marvinmartinez888:
I just hope that its not a radio update. If there's no signal.. there wont be any update then.. A patch will be best thru cable.
[G2 and Desire Z Q&A, Help & Troubleshooting] marvinmartinez888:
Good to know this instructions, but how about phones that was not able to follow these instructions? any way of unlocking it? i have 3 phones with me. The first phone asks for the unlock code every time. the last 2 phones however is no longer asking for the unlock code.
[G2 and Desire Z Q&A, Help & Troubleshooting] marvinmartinez888:
Any update on the 4 phones that were messed up? any way of restoring it?
[G2 and Desire Z Q&A, Help & Troubleshooting] guhl99:
Don't get me wrong but this exactly what I did when I unlocked my phone and since then it has the no signal problem.

THIS IS JUST PURE COINCIDENCE THAT IT WORKED FOR YOU.

Don't promise that you found a working way because at the moment there is none that has not failed a least once.
[G2 and Desire Z Q&A, Help & Troubleshooting] guhl99:
Of course you will have to install the update by cable or from the SD-card.

It is called a radio-update because it updates the radio-firmware.

The phone has got 3 parts of firmware.

bootloader

radio

system
[G2 and Desire Z Q&A, Help & Troubleshooting] guhl99:
Well let me summarize my knowledge:

1. There is nothing that you or we can do for these phones at the moment.

The only thing that you can do (if you can) is give them back to T-Mobile and have them replaced.

2. My sources say that there will be the following possible options but no one knows for sure if the first one is valid.

- HTC releases an update for the radio firmware that will fix this problems also for the already broken phone.

- The problem can be corrected in an HTC service center using a smart card and the proper S-58 diag software. Obviously these have not been delivered to the service centers all over the world but should be sooner or later. In the US it still might happen that they send you back to T-Mobile but in the rest of the world the service centers have to deal with the phone because of the international warranty.

- The smartcard and the S-58 software have been leaked from HTC and are already on sale (see http://www.youtube.com/watch?v=nLFqGKzrtyg. So they might show up at a GSM-service and unlock shop near you in the future.

It is probably not an option for you/us to buy one of these as they are rumored to cost 2000+ USD

3. (and again) There is no guarantied way how to perform the unlock that will succeed in an usable phone. If it worked, you are lucky - if not you probably did not do anything wrong. I know of successful cases using the software and the hardware keyboard and also of unsuccessful. The only thing that is common to all successful cases is that they did not interfere with the reboot process regardless how long it took. (But my phone also rebooted without me interfering at all in about 2 minutes and still ended up unusable)

This is all my knowledge that I have so far.
[G2 and Desire Z Q&A, Help & Troubleshooting] gpou:
Maybee we could locate a person or a repair center having this smartcard and pay him to unlock out phones.

Also could it posssible to find the DIAG.img???
[G2 and Desire Z Q&A, Help & Troubleshooting] guhl99:
Yes, if we find one. But as the phone is not even sold yet (besides by T-Mobile in the US) this might still take some time.

Even if we find the DIAG.img (whis is the S-58 btw.) we can not use it while the phone is S-ON. Because hboot will only load the image if you provide the proper key (and therefore you need the smartcard). But if the root attempts are successful in removing the S-ON state, then we can install any bootloader and use any DIAG.img (if we found one)
[G2 and Desire Z Q&A, Help & Troubleshooting] gpou:
So dear guhl99 if i understood you correctly we could solve our issue but only if we can get a S-off Hboot. Otherwise the alternative is a patch from HTC. Is it possible HTC to address the issue with a radio update?????

Also one good thing is thsat Paul (Owner of modaco) has the same issues with his G2 so we have a stong programmer to our side. If you check his twitter you will see him mentioning ths issue.