Hi I have Android phone G1-Dream. My phone restart automatic. So I am not getting the problem with the phone .If you know the solution please send me solution.

I had a htc g1 a long time ago. Never unlocked it though. Good luck.

open the pone and show the google account and enter sim show the network pin

http://forum.xda-developers.com/showthread.php?t=491350
above is a guide for returning your g1 back to stock
http://forum.xda-developers.com/showthread.php?t=668090
above here is everything you could ever want to know about rooting your g1

If it was me I would look into updating the radio, recovery and then flash the rom again.

So far, I suspect the G1, not the sim card. However, what type of phone was the other phone, and what issues did it have? did the other phone work with the card at all?

Have you tried a hard-reset - best to take out both battery and sim, leave them out for a few minutes before putting in again, then restart the phone.

Does it have enough power in the battery - suggest charging for a few hours and have another go? What colour is the status light?

Some phones do take a while to boot, did you give the phone plenty of time, eg, ten minutes, to be sure?

I've had a look at this manual:
http://member.america.htc.com/download/Web_materials/Manual/T-Mobile_G1/R1.0-Kila-UserGuide-Rev08-TMUS.pdf
but there's no support contact or troubleshooting info.

HTC support site is for "HTC Dream":
http://www.htc.com/au/faq_detail.aspx?p_id=187&act=faq&cat=0
There is a more comprehensive manual by HTC here, so you may find what you need. Possible you have blocked your SIM by operating it in the other phone without entering the correct PIN, so you may need to obtain an unblock key from your cellular provider to get going again. (see section 1.6 on p34 of the HTC Dream manual)

Other things to try, in case:

Do you use a microSD flash memory card as well, and if so, what happens if you have it in, and if you have it out?

Phones can usually be connected with USB to your computer, have you tried booting it while connected? Can the sync software recognise the phone at all?

Has anything changed with your cell provider, has your contract changed or expired? Assuming you had it working OK before?

Another question - if you have another sim card (a friend maybe?- if your friend is willing to lend you theirs) can you try that in the G1?

Please can you let me know what you have tried out of these, and what else you have tried?

At the very worst you may need to do a factory reset, which would completely erase any data and settings and start over. Only as a last resort. Here are instructions (HTC Dream):
http://www.htc.com/au/faqs.aspx?p_id=187&cat=86&id=108190&f=t
Not possible to do if you can't get into the menus though!

All I can think of for now, hope you can get it working.

sir my mobile is htc dream and my imei number is 352779030269263

Hi there,

If the phone is unlocked then you shoudl not have any problems, besides, the G1 unlocks automatically after 90 days or at least the UK T-Mobile version does. If you don't want to use 3G then make sure you turn it off in the wireless settings.

Maybe now there arent some programs you would expect on the G1, this is the first phone on a completely new OS. give it a few weeks when Devs have started introducing programs on the Android marketplace that allow the extra missing parts of the phones capabilities to be Filled in such as Video recording, Video playback, Bluetooth A2DP etc. Just remember, Android is Completely customisable, Absolutely anything can be performed on the OS with the right program and phone specifications !

i cant buy the HTC Dream yet, with being tied to an O2 Contract which expires jan. and also living in the UK wher the phone is released in 3 days.

The G1 has an Immense Buzz surrounding it, not so much with your Normal phone users. but smartphone users and Big Tech Lovers ! there are sites all over the internet crawling with G1 / Android activity. the main one i use regularly is http://androidcommunity.com/

There you will find all sorts of people. Thousands of them ! all with the same love for phones and technology as me :D if you want to find out anything about the G1. i suggest you go there !

the phone is the HTC Dream. as it was the company HTC Taiwan who manufacture the phone.. the phone is Branded as the T-Mobile G1 because the phone is Unique to the T-Mobile Carrier.

if there is No T-Mobile in Spain, im not sure if you will get it at all ? the 3G band used my the G1 is Unique to T-Mobiles 3G Network