@lek_e30,
Your GPS jumps around from one place to another randomly i suppose?
If it is, then yes I'm facing the same issue as well..
Any Celcom users here that wanna share their APN settings? I mean the complete list

not only that!!! my maps cant work (to determine my location) if the cell location is disabled
Oh!! Want to join the Darkside eh?! ^^;
It depends on what version you are going to root.
But let say if you are starting from Ori RC33 --> downgrade back to Ori RC29 --> root to JF1.41 RC33/ADP1.1/RC9, it will be advisable to do a complete wipe.
If from JF1.41 RC33 --> update to JF1.42 RC33, then a wipe is not necessary.
If from JF1.42 RC33 --> cross to JF1.43h ADP1.1 , wipe is a must (vise versa).
And you and get Astro to backup ur apps, and mybackup to backup ur SMS/MMS/contacts.
If want to find out more which version is suitable for u, check out
JF site.
Hope it helps

Added on March 21, 2009, 8:15 am@Lek, have you try to reboot and test it under a bright sunny sky?? ^^ Today is a good day to test your GPS.
I can see u on Latitude, but couldn't know its from your cell tower or from your GPS.
Added on March 21, 2009, 9:36 amOk, this is another GOOD NEWS to non-rooted G1, there is a new app to help you gain root access in just 4 steps (eliminated those tedious command typing on terminal emulator) -
Check this out ^^; Happy rooting.
PS* Be advised that there are risks to the rooting process. Making a mistake could cause the G1 to “brick” and become useless because of damaged firmware. The app’s creators state they accept no responsibility for damages caused by using this app. So make sure you drink Brands pati ayam before rooting your G1, k

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hmmm.... although the steps quite simple to follow, but it seems like the internet connection is needed in between the rooting process (to download the flash rom). This is risky as our G1 doesn't have default APN setting for local telco once wiped and also 3G downloading is prone to have bad flash due to inconsistent signal. ^^(
Guys, think twice before go on ah! Don't think Brands can help here.
i reboot quite often recently bcause my dxtop nid to force close a few time!!! at that time all my calls was mess up!!