Deleted text is there any way to recover deleted text msg. aftr i have seleted them from text msg. box on a g1 phone?

The Android Phone uses a browser called the "Android Browser." It's a combination of open source Web kit of Android and Chrome's V8 JavaScript engine

Hi, you can recover deleted contacts and SMS from Samsung via Gihosoft Free Android data recovery software. With this freeware, you can easily recover deleted or lost data like photos, music, videos, messages, contacts, call logs, WhatsApp messages, Viber chat history and more from Samsung, Huawei, LG, HTC, Motorola, Google, Oneplus, Sony, Lenovo, ZTE and other Android devices directly.

Here is the user guide:
Gihosoft Android Data Recovery Guide

Samsung SMS Recovery How to Recover Deleted Text Messages on Samsung

Samsung Contacts Recovery How to Recover Deleted Contacts on Samsung

if you using Nokia PC suite in your computer...that msg is saved in PC if you not have Nokia PC suite no way to recover the deleted msg..

If you have the contact on your web text contact list then you'll be able to do it

Sorry. Most Cellular carriers don't keep text messages on their servers. Contact your cellular provider but I don't hold out much hope for you

Exchange sync wasn't in the OS until Eclair (Android 2.0/2.1).

If you have a newer Android an OTA update will likely get you this functionality. If you have something like a G1 that will not get updates in the 2.x range, you will have to consider unofficial ROMs like CyanogenMod.

untill unless u have made a back up in ur pc no chance or recovring

Yes i can put.

You should update the 'System' on your phone.
Go to Settings>About Phone
Select 'System Updates' to get your system up to date. This should get you going with Android Market.
You will need some internet connection for this.