yashsingh1/xdaforums huggingface dataset:
[G2 and Desire Z Q&A, Help & Troubleshooting] guhl99:
Well let me try to be as precise as possible.

My source at a mobile carrier says that HTC will address this issue in an updated radio firmware version and this is also reason for the delay of the Desire Z deliveries. This radio update is supposed to work for the phones that are in the state of our phones. (but as I said this is just second hand information and not from HTC officially)

As they say in the #G2ROOT channel: If we got S-OFF it's game over!

Then we can install any bootloader that we like to install and also load any diag file that we have (if we have one)

Who is Paul? (twitter-account, xda nick)
[G2 and Desire Z Q&A, Help & Troubleshooting] gpou:
http://twitter.com/#!/PaulOBrien
[G2 and Desire Z Q&A, Help & Troubleshooting] Junior-J:
I just simply did what manee stated, I would try that and see what happens. It's important to note that, unlike manee, I did mess up my phone and it was originally reporting "no signal" even with a tmobile sim card. I just kept retrying until it finally work. I guess the actual fix for this problem is simply persistence.

I agree there seems to be no guaranteed way, but I would advise folks who have this issue to simply keep trying. It took me 5 times to pretty much fix my "no signal" issue. Just keep trying. Use a bunch of different sim cards and see what happens.
[G2 and Desire Z Q&A, Help & Troubleshooting] senone:
I did it and it didnt work, I actually entered the tmo supplied code, one time and it said unlock sucessful. after reboot no service no sims worked tried three, 2 tmo and one nextel and nada..... called tmo they have no clue.. response is send us the phone we will send you a new one tomorrow (as they have no local service centers to replace the brand (4 day old phone). Pity I really liked my phone...
[G2 and Desire Z Q&A, Help & Troubleshooting] gnormal:
yes. i can only see a blank list.

when i save an apn i cant even tell if it saved.

the list remains blank.

imei=3591 1603 224 xxxx

i unlocked in the usa with philippine sim (globe).

i used the screen keyboard.

it said it was successful.

it took a minute or so before rebooting.

since then it says "no service" although phone info lists my signal strength at -83.

3 different att sims didnt work.

i didnt try to put a tmobile back in.

emergency call works.
[G2 and Desire Z Q&A, Help & Troubleshooting] lafa:
I unlocked it with a old card without service and it worked, but I had to do it a couple of times. I don't remember exactly the steps I used. But mine is unlocked and working.
[G2 and Desire Z Q&A, Help & Troubleshooting] gnormal:
i got the message that the unlock was successful and it rebooted fine. but no service.

so how can i get it to ask me again for the unlock code so i can "try again"?
[G2 and Desire Z Q&A, Help & Troubleshooting] gnormal:
OTA update 11/4?

i just read about rumoured ota update. how can i obtain and install an ota update from abroad (outside tmobile)?

we might hope that this update could help with the problem addressed in this thread.
[G2 and Desire Z Q&A, Help & Troubleshooting] andrewklau:
The ota is meant to come out throughout this week, so sit tight for a few more days :) Also you should wait a bit, as you may lose your ability to get future root if you update straight away. (I also believe you can get your OTA over wifi, someone correct me if I'm wrong.)
[G2 and Desire Z Q&A, Help & Troubleshooting] gpou:
i can live without root....But i cannot live without signal ;)
[G2 and Desire Z Q&A, Help & Troubleshooting] deathofdemigod:
email to HTC-europe:

now there is one thing left - is to wait and believe in existence of this patch ;)
[G2 and Desire Z Q&A, Help & Troubleshooting] marvinmartinez888:
i also have the same dilemma, i can't make my other 2 phones to ask me for the code.
[G2 and Desire Z Q&A, Help & Troubleshooting] gpou:
Reply from HTC.COM

ME: "Have you been aware of the problem of the new T-Mobile G2 aka HTC Vision

The phone after entering sim unlocking code cannot connect or even search for any networks. Is there any update soon to address this issue?"

HTC: "I understand you have the T-Mobile G2 by HTC and after entering the SIM unlock code the device does not find any networks. I know how frustrating this is for you and apologize for any inconveniences. If I may inquiry, what SIM card are you using in the device? It may not be a device issue but and issue with the type of SIM card you are using. Some of the pre-paid SIM cards are locked and cannot be used in the same fashion as a SIM card connected to a service contract with the provider. As for any updates, at the current time there are not any software updates for the G2."

Second answer

HTC: "Thank you for your response. At the present time, there is not any patch that HTC Technical Support is aware. Please keep a check on our website or T-Mobile’s website for any updates. You can also follow us on our Twitter and Facebook pages for update information as well. "
[G2 and Desire Z Q&A, Help & Troubleshooting] guhl99:
Here is the OTA

http://android.clients.google.com/packages/ota/tmobile_g2/e4aaacea73af.OTA_Vision_TMUS_1.22.531.8-1.1.19.531.1_release_signed.zip

It contains a new radio firmware (but of course no one knows if it fixes our issue).

I will not install it now because it might be that you can not perm root the phone after this update.

As it is not really critical for me to use the phone as a phone I will wait.

But whoever tries it, please report back.

Also if it did not work, please report your new radio version.

have fun
[G2 and Desire Z Q&A, Help & Troubleshooting] gpou:
I will be at home in two hours...I will update ASAP and report.
[G2 and Desire Z Q&A, Help & Troubleshooting] strezac:
No, it does not fix our problem... :(:confused:

Still not able to see mobile networks.

Pray harder
[G2 and Desire Z Q&A, Help & Troubleshooting] gpou:
This isnt good :(

See and HTC Reply above....

So the only case for us is a full nand unlock (S-OFF)
[G2 and Desire Z Q&A, Help & Troubleshooting] jmd1981:
I'm also abroad and worried about trying to unlock. Can't you guys get it swapped out under 1 yr warranty with HTC?
[G2 and Desire Z Q&A, Help & Troubleshooting] guhl99:
Could someone who applied the radio update and is able to attach a serial console to the phone (see http://xdaforums.com/showpost.php?p=8750299&postcount=121) try to do the unlock again?

use the following commands on the AT-Command line to do so

ATE1
ATV1
AT@SIMLOCK=0,1,code <--- replace "code" with your unlock code
AT@SIMLOCK=0,2,code
AT@SIMLOCK=0,4,code
AT@SIMLOCK=0,8,code
AT@SIMLOCK=0,16,code
AT@SIMLOCK=0,32,code
AT@simlock?40

If the first AT@SIMLOCK=0,1,code already gives you an error (probably 4) then you can stop because it does not work.

If everything gives you 0 and the last one 00 you would be very happy!

Just something that should be tried, but I do not have to much hope, ...

Or one could try it with my modified libril version (see http://xdaforums.com/showpost.php?p=8807089&postcount=173) that brings the unlock screen back and triggers the unlock process from the android system again, but this is a little bit tricky but it works also if you are a windows user and not capable of using a serial console. If you are interested in trying this than reply and I will describe the procedure.
[G2 and Desire Z Q&A, Help & Troubleshooting] gpou:
AT@SIMLOCK=0,1,xxxxxxxx

answers ERROR
[G2 and Desire Z Q&A, Help & Troubleshooting] guhl99:
I feared it but at least we had to try -> too bad !
[G2 and Desire Z Q&A, Help & Troubleshooting] gpou:
So our only hope is te S-off?
[G2 and Desire Z Q&A, Help & Troubleshooting] Junior-J:
Try taking the sim card out...putting in a tmobile sim card. turning off your phone...re-running intitial setup. Then turning off ur phone and inserting in an entirely different sim card. I used about 4 diff sims (2 from us, and 2 from other countries). the last sim did the trick for me. This whole issue is very very weird. I'm guessing to just try all possibilities.
[G2 and Desire Z Q&A, Help & Troubleshooting] gnormal:
OTA update:

i installed it from the SD card. it didnt fix this problem of no phone.

you can easily find out how to do it but i wouldnt bother if youre in my position.

wifi calling and tethering options are ther, but cant be used.

http://www.intomobile.com/2010/11/03/manually-update-g2-google-goggles-fix/

another comment:

" If I may inquiry, what SIM card are you using in the device? It may not be a device issue but and issue with the type of SIM card you are using. Some of the pre-paid SIM cards are locked and cannot be used in the same fashion as a SIM card connected to a service contract with the provider."

my sim card here in the philippines is Globe postpaid. it's not prepaid or locked. i have a service contract.

so our options are (correct me if im wrong):

- return the defective phone for a refund

- wait for htc to create update

- wait for root access

if that's correct, cant we use the temproot solution? VISIONary?

http://android.modaco.com/content/t...m/320350/03-nov-r10-visionary-one-click-root/

i have never tried that stuff but would be glad to if it would give me a phone i can call people with...
[G2 and Desire Z Q&A, Help & Troubleshooting] lafa:
I remenber trying several times, and removing the battery. To replace simcards, and getting the message several times of sucessfull unlocking the phone, but once I rebooted the phone was again locked. After several tries using a old disabled cingular simcard and a recent tmobile prepaid card, the phone was premanently unlocked.

I don't remenber all steps I did anymore. I hope this helps someone out there.

Mine is unlocked and I have good 3g signal.
[G2 and Desire Z Q&A, Help & Troubleshooting] gpou:
No my friend that is not accurate. We dont need only root but nand unlock. That's the S-OFF i mentioned above
[G2 and Desire Z Q&A, Help & Troubleshooting] accons:
ive been searching for 2 days for the solution since i unlocked my phone… hopefully HTC will come up for an update ASAP.. :confused:
[G2 and Desire Z Q&A, Help & Troubleshooting] gnormal:
obviously they can fix it. they just need enough urgency.

how can we raise a stink about it so it gets written about,

"Unlocking T-Mobile G2 Kills Your New Phone"

"T-Mobile Drowns in Sea of G2 Returns following Unlock 'Bug'"

"Hello Tethering, Goodbye Cellphone!"

I wish i could return it but im on the other side of the world.
[G2 and Desire Z Q&A, Help & Troubleshooting] he3r0:
Unlocking G2 kills your phone

I have a similiar unpleasant experience with this phone, After purchasing my new G2 i`ve sent a request to tmobile for unlock code, that I`ve got, after putting a sprint sim card (yes i known that sprint is cdma, but friends touch pro2 had a sim card branded sprint - Matt i known you are reading this) so after putting the code, phone took a few minutes to reboot, and that is it, it did not worked, with either my original tmobile, or my buddies sprint card. Next day i went to tmobile store and got a new phone (boy i had to fight for it) but now im across the world and affraid to unlock my g2, because im afraid that it will do the same thing... so in either way.. it does not work for me atm, and it is a rather pricey paper weight.

Only thing i noticed, when i was unlocking my G1 that was different than G2, is that

G2 needed to reboot after unlock, and G1 did not (i have CM6 on my G1 with Android 2.2)

soo... im really interested in outcome of that issue, hopefully htc will fix it very soon, since it does looks like an obvious software problem, not a hardware flop.
[G2 and Desire Z Q&A, Help & Troubleshooting] guhl99:
Bad news!

After a very nice long and competent conversation with HTC this is the basic outcome:

- They can not help us with the unlock problems of the G2 even if they technically could.

- We have to go through T-Mobile USA support for the replacement of the phone.

This in my opinion leaves us with the options to:

- Either find a solution our selfs. Which basically means that some devs have to find a solution to unlock and or replace the radio. I don't know if this is going to happen soon or at all because radio is not the primary attack vector of the devs.

- Find a local (or even remote) phone unlock store that is in possession of the smartcard and the diag-software.

- Try our luck with a TurboSIM or equivalent

- Hope there actually will be this rumored radio update that fixes the issue

- Send the phone back to T-Mobile

Well I in person will keep working on the revers engineering of the radio but this will take a lot of time.

Not really impressive options!
[G2 and Desire Z Q&A, Help & Troubleshooting] deathofdemigod:
guhl99,

how about this thing:

android.modaco .com/content /t-mobile-g2-g2-modaco-com/322147/titanium-backup-can-now-remove-applications-using-the-recovery-exploit/

quote: "supports remove applications from NAND/eMMC locked system partitions"

it that the same NAND, that we need to unlock?
[G2 and Desire Z Q&A, Help & Troubleshooting] cparekh:
This is a completely different issue. This solution doesn't unlock anything, it just tricks the phone into deleting things. I cannot see any way it would help here.
[G2 and Desire Z Q&A, Help & Troubleshooting] cparekh:
duplicate post.
[G2 and Desire Z Q&A, Help & Troubleshooting] jmd1981:
I know this doesn't help you guys that are still broken, but I just unlocked using a Softbank prepaid card in Japan. I did so after OTA so maybe it actually fixed something or maybe I just got lucky.

I used the physical keyboard to be safe and held down alt like that youtube vid. Doubt it makes any difference, but I did just to be safe. When it booted back up, it said softbank on it and I called it to test and worked just fine.
[G2 and Desire Z Q&A, Help & Troubleshooting] cparekh:
For what it's worth, I called T-mobile, and got my unlock code from them. After unlocking, the phone still works just fine on the T-Mobile network. I have not tried it on another network.

The phone will boot with an AT&T SIM, and I have access to all the functions, but since I don't have an account with them, I cannot test if I can actually register on their network.
[G2 and Desire Z Q&A, Help & Troubleshooting] he3r0:
If it still works after unlock with tmobile card, you are ok. In my case no sim card worked after unlock, not even original tmobile.
[G2 and Desire Z Q&A, Help & Troubleshooting] cparekh:
How did you get your unlock code? My thinking, though it might be erroneous, is that if you got it from TMO, then they have given you permission to unlock, and they would be responsible for a warranty exchange.
[G2 and Desire Z Q&A, Help & Troubleshooting] guhl99:
This does not help us at all (at least at the moment).

Paul is using a feature/bug in the recovery that it deleted the update file that it should apply. And Paul just manipulates the recovery script so that he uses the applications apk file as an update file (which is a very clever idea by the way).

The update will fail because the apk is not an update file but the apk will be deleted.

First we would want to write to a total different partition than system (we don't even know which) that will probably only be accessible to the radio firmware and not to recovery.

Second it can only delete files and not change them (scotty and others are trying hard to find an exploit here)

So this will not be an option in the near future.
[G2 and Desire Z Q&A, Help & Troubleshooting] gnormal:
yes. mine shows a new icon after trying to boot up post ota called SIM Toolkit. it has a few little carrier-specific menu options. this stuff was definiately read off the sim. when i used another sim from a competing carrier, the menus inside SIM Toolkit were branded for that carrier.

re the options above- trying a turbosim will not work for me case since i have already unlocked, right?

today i am going to the phone tinker part of town to look for a guy with a smartcard & smartness. the place looks like blade runner. ill also try a turbosim.
[G2 and Desire Z Q&A, Help & Troubleshooting] amarsana:
g2

how do i run the initial setup over and over again? i want to try

please explain, i'm a desperate housewife thank you
[G2 and Desire Z Q&A, Help & Troubleshooting] nicky.m:
Does tmo or htc give an official statement on this issue?

I think a party should do (or even have done) something since many G2 users are frustrated with the unlock process.

The unlock code is supposed to allow people leaving the U.S. to use a SIM from another carrier, right?

How can they just leave those users outside the US alone with their malfunctioning phone and say they have to go back to the Tmo USA for replacement?
[G2 and Desire Z Q&A, Help & Troubleshooting] he3r0:
I've got my code from tmobile, and they replaced my phone after some fight (i didn't have box for it anymore)
[G2 and Desire Z Q&A, Help & Troubleshooting] accons:
HTC sent me email regarding this issue and this is what they say..

Dear xxx,

I understand you purchased a G2 and would like to use with your service provider. I understand you have been able to get your device unlocked but you are unable to locate networks. Once you have unlocked the device and entered the SIM card, were you able to place any calls. Once the device is unlocked and you do have active service you will be able to place calls. However you will need to gather APN settings from your provider so you will be able to access their data network. The settings you will need are Name, APN, Proxy, Port, Username, Password, Server, MMSC, MMS Proxy, MMS Port, MCC, MNC, and APN Type. This is the process of you will follow to enter in these settings. Tap on Home> Menu> Settings> Wireless & Networks> Mobile Networks> Acess Point Names> Menu> New APN. Then enter in the information in the desired fields. Once the information is entered in tap Menu then Save.

To send a reply to this message or let me know I have successfully answered your question log in to our ContactUs site using your email address and your ticket number xxxxxx.

Sincerely,

Lisa

HTC

Want to see what others are saying? Have a question to ask other HTC fans?

Become a fan of HTC facebook.com/htc

Follow us on Twitter twitter.com/htc

Subscribe to our YouTube Channel youtube.com/htc

YOU THINK GUYS THIS WILL WORK.. I HAVENT TRIED IT.. ILL TRY TO CALL MY SERVICE PROVIDER FIRST...
[G2 and Desire Z Q&A, Help & Troubleshooting] andrewklau:
I believe people are having the problem that they can't even make the phone call in the first place, not being able to connect to the cell network is before even entering APN.
[G2 and Desire Z Q&A, Help & Troubleshooting] accons:
yeah thats exactly my reply to HTC.. my network provider told me that why they were asking for APN to access data network if i dont have a cell network.. :mad:
[G2 and Desire Z Q&A, Help & Troubleshooting] senone:
It dosent the apn just dissapearS after entering..... tried all of this even tried entering tmobile's apn's I just gave up and they gave me a new fone... this should be stickied with a warning UNLOCK AT YOUR OWN RISK.
[G2 and Desire Z Q&A, Help & Troubleshooting] guhl99:
As it has been said her already some times:

The problem is not the data connection and therefore not the APN, the problem is, that the phone is locked and therefore can not read the IMSI (see all the logcats in the beginning of this thread) and because it can not read the IMSI there is not even a basic GSM connection.

The APNs in android are stored with the MCC/MCN as a key. And android always shows you only the APNs that fit the MCC/MCN of the IMSI of you current SIM. As it does not read the IMSI, the MCC/MCN are empty and so the APN seams to disappear.

But all this is not important for our problem and only of secondary interest.
[G2 and Desire Z Q&A, Help & Troubleshooting] guhl99:
No the TurboSIM could work for you but the SIM slot in the G2 is really narrow and not TurboSIM friendly. I already destroyed one and am waiting for new ones.

Let's hope that he already got the right smardcard/diag.
[G2 and Desire Z Q&A, Help & Troubleshooting] he3r0:
Sooo... Im asking since i have not seen anything about it yet.

Does unlocking AFTER applying OTA gives better success rate than before?

it is not the question if OTA have a fix for existing condition.

Im using my locked G2 as a wifi net access atm...
[G2 and Desire Z Q&A, Help & Troubleshooting] nicky.m:
Is there an email address to contact tmo?

I can't find one (only phone no. and live chat) but have to ask them if its possible to have replacement overseas

Is it a wise move to have my g2 returned and try a new one at the moment?

These days of frustration have driven me crazy.
[G2 and Desire Z Q&A, Help & Troubleshooting] guhl99:
Today I found that there also is an AT-command

AT@SIMLOCK?80

The answer on my phone is

@LOCKTIME: 02 but last time I asked it was @LOCKTIME: 03

Does someone know what that means ?
[G2 and Desire Z Q&A, Help & Troubleshooting] JustSayTech:
Hope this helps, I posted this on Team-Android.com, idk the rule but I'm going to post the link

team-android.com/2010/11/07/t-mobile-g2-carrier-unblock/

If I did something wrong by posting this link, mods delete and ppl please don't flame, thankyou

I really hope this issue gets resolved, I actually have to get a G2 replacement in the morn, and I'm willing to unlock again for the purpose of helping to solve this problem
[G2 and Desire Z Q&A, Help & Troubleshooting] ganny:
Hey guys, I just thought I'd post my success story, because I know I for one was watching this thread every day until my G2 arrived because I was scared as to whether it would work or not.

When I received the phone, the first thing I did was apply the OTA update manually.

Then I proceeded to follow the instructions in this post: http://xdaforums.com/showpost.php?p=8891556&postcount=198

I used a Docomo sim card (in Japan) and it worked fine, the reboot took about 15 seconds. I have to say I was thrilled!

I hope this helps some people like me from before.
[G2 and Desire Z Q&A, Help & Troubleshooting] jashsu:
Whether you use the software or hardware keyboard has no apparent effect. I unlocked my phone with software kb, and if that isn't enough proof for you, here is a Youtube video of a phone being unlocked with skb:

http://www.youtube.com/watch?v=BnUEI4l56GQ&t=1m20s
[G2 and Desire Z Q&A, Help & Troubleshooting] khoinguyent:
So does anyone find the solution for this prob?
[G2 and Desire Z Q&A, Help & Troubleshooting] nicky.m:
Do we need a code from tmo necessarily?

Did anyone make the process successful with a code from elsewhere?
[G2 and Desire Z Q&A, Help & Troubleshooting] gnormal:
A few of the ppl that had this problem reported that they succeeded by persistent playing around. Since its a finicky problem how about flashing with one of the roms at the bottom of the page at xda-roms.com?

(If this is impossible then why are they there?)

What is the tmo return policy? How long do we get to return it?
[G2 and Desire Z Q&A, Help & Troubleshooting] nicky.m:
No, not at the moment and not

even sure in the near future.

The only way is to return your device for replacement which could be quite feasible to those in the us, yet perhaps too costly and even impossible to oversea users.

Patience may be the only one left for some desperate folks.
[G2 and Desire Z Q&A, Help & Troubleshooting] he3r0:
From what ive gather, problem lies with the tadio part of the firmware

That custom roms usually do not touch.

As for tmo return policy, I was able to replace my phone after 4 days of ownership

(though I'm not in contract with them anymore) but I've had to ***** about it.

I'm thinking that standard warranty rules would apply in this case. So 14 days for buyers remorse period - phone should be replaced on the spot, anything above that, I think would be

Handled as any warranty phone replacement, ie they send you a new one and you have send them your old one in the same box.
[G2 and Desire Z Q&A, Help & Troubleshooting] nicky.m:
So is it impossible to have a replacement for oversea users?
[G2 and Desire Z Q&A, Help & Troubleshooting] he3r0:
That is the question for tmobile, I'm overseas as well atm and have no idea how that would work. where did you got yours from? Ebay? Than I would try HTC