...really need help, 24 hours to go!

---

Hello everybody, I'm writing you from UK, where I bought a second-hand G1 (absolutely perfect!!! really good). The phone is T-Mobile branded and factory-default cleaned. Once I got it, placed my italian H3G sim inside, and (of course...) it told me that it was locked. I purchased a key (...I know may I could do without it... but very few time to spend, these days) and it was succesfully sim-free. Then I reebot it, and start the acrivation... that doesn' run!!! I insered the correct APN parameters, I also tried with a UK O2 and Vodafone sim, but, problem is that the gsm segnal level (small icon on the top with 4 vertical bars) is not giving signs of life, and it has a small "cross" on the left side. Of course I can't get the registration... I can't get the line!!!! why does it happen??? all the sims are correctly recognized (ask for the pin and the "no sim" messages and icons are off), but no way to go over...
Please, help me in any way, just 1 more day here, then I'll go back to Italy... far from the shop!!!! HEEEEEEEEEEEEELP!!!!!!!!!

If you type:

reboot

and press enter. If the phone reboots you can have a chance, if the phone does not it means its on a updated version which you will have to downgrade. While downgrading i recommend going up to Rooted versions of android. Although you might not need it.

You should look here:

http://forum.xda-developers.com/showthread.php?t=442480

and/or here:

http://forum.xda-developers.com/showthread.php?t=452316

You can get through your problem, if its just the registration. by simply following a few of the instructions in the first link combined with some of the instructions in the second link.

@elmejor: He didn't even mention rooting. His problem is he can't get his phone to associate with the networks on his sim.

@tony_m78: You should probably post what apn settings you are using. Also, this is NOT A DEVELOPMENT ISSUE and should not have been posted in this forum.

thanks gor your answer.... I have been to those links THOUSANDS of times, within yesterday night and today... but I really can't get a solution. I can't go over the "error connecting to server" page :(
The worst problem is that I really don't have time NOW, but I'll have it at the end of the week; I know I'd get a solution, working on that... but really I can't. But whay do you think about the absence of segnal? is it normal?!?
Tomorrow morning I'll find the way to buy a T-Mobile original sim and try to see what happen. . . . . . but that's strange!!!!!!!! not normal... i insered a correct code (generated from the IMEI), the answer was "unlocked", free for others carriers.... BUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUU UUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUU UUUUUU!!!!!!!!!! :( tic tac tic tac. . . ..I don't have time!!!!!!!! :( nobody experience this strange problem?!?

Originally Posted by jashsu

@elmejor: He didn't even mention rooting. His problem is he can't get his phone to associate with the networks on his sim.

@tony_m78: You should probably post what apn settings you are using. Also, this is NOT A DEVELOPMENT ISSUE and should not have been posted in this forum.

...oooooops... really sorry, I was wrong. Can you link me to the correct place??? I'll move there immediatly...

Originally Posted by jashsu

@tony_m78: You should probably post what apn settings you are using.

...I don't think the problem is the APN, I set the correct one (from Wiki) for H3G Ita and for O2 UK (these are the sim I tried with); the problem is that the segnal is ZERO, like the sim is not present... BUT IT IS, it ask me for the pin and accept it....

Can you manually select the network to connect to? Settings>Wireless controls>Mobile networks>Operator selection

Are you sure radio is working on this phone? Maybe it has some physical problems (like bad gsm chip)... Or - maybe you have sim cards not acceptable in UK.
Try with T-mobile sim first. If not working:
I would try to factory reset device some times, if it don't help I would try to reflashing it (firmware and radio). But in your case I think you should ask about this situation in shop where you bought it (if you have warraty) first.

Data plan?

---

I had a similar problem when I got my APD1 phone in the US. When I returned to the UK, I put in my Tesco SIM and the phone signal strength icon had an 'x' indicating not connected or no signal. Eventually I used my home wifi to activate the phone. After the phone was activated, the same SIM was able to connect and the signal strength icon worked normally.

BUT, it turned out that all I probably needed to do was to have a SIM with a data plan (which mine didn't at the time) <<BLUSH>>
Have you confirmed that your SIM has data turned on?

Of course ensuring that the APN settings are correct is also necessary. (But it sounds like you did that)