Share your experience!
Hey Everybody 
i've tried yesterday to get access to Android market from ma xperia arc for da first time but i cant :s
it requires a google account and i've one , da problem here is ma dad used the android market frm ma phone and he signed in frm his acc. and now he forgot his passward , nd i cant change da account to get access frm mine .
i 've tryin' to delete da account but a warning msg tell me dat if i do it 'll erase da data nd msgs of dis account i pressed continue deleting but still no use :s
how to change it Plz ?!
From where you are trying to delete the account, can you tell me?
And you can add another account and continue using android market and gmail fucntion.
For this go to settings
--- Accounts & Sync
---Add Account.
Then follow the on screen info and when u sign in with your account, u can access the market with your account.
Hi, you may want to consider a phone reset. This will ensure the removal of your dad's account which could prevent problem which might arise later. To reset phone, Settings>Privacy>Factory data reset.
Choice is yours. 
dat 's what i do Auni , but when i return to android market app again it requires me to write da pass. of ma dad's acc. and i didnt found anywhere to get access frm ma acc.
thx for ur Reply 
which data exactly 'll erase if i do so ?!
is dat 'll affect ma app. on da mobile , is it 'll cause any harmfull effects ?! nd whenever i wanna change da acc. everytime it requires me doin' dis action !
and thx 4 da HeLp 
it will delete everything
sms, mms, apps, contacts, settings
1) backup everything then
2) use SEUS to delete everything and update your phone or just do the factory reset
Don't forget to mark the Correct Answers & Helpful Answers
2)
Update Service (SEUS)
http://dl-www.sonyericsson.com/cws/download/1/110/61/1309763183/Update_Service_Setup-2.11.7.13.exe
1) Make sure you backup everything
Settings -> privacy -> Back up my data and Automatic restore should be selected
and also
Don't forget to mark the Correct Answers & Helpful Answers
Use one of these links to download the
Backup & Restore app
http://forum.xda-developers.com/showthread.php?t=1193802
or
http://www.elita-clan.com/downloads/backup_and_restore_v010935.apk
http://www.elita-clan.com/downloads/backup_and_restore_v010935.apkor
http://www.mediafire.com/?1n07llajeaoo03y
How to install it
You need to
go to settings -> applications -> check unknown sources
download IO File Manager
https://market.android.com/details?id=org.openintents.filemanager&feature=search_result
download the backup & restore app, transfer it to your SD card, use OI file manager to find it -> tap on it -> install it
Contacts
just to play it safe sync your contacts w/ google if you haven't already
open your phonebook
press MENU button -> tap on Send Contacts -> select all -> send it to your email
on your computer
-> download the file -> go to your gmail -> click on contacts -> click on more actions -> on the drop down menu click on "import" -> choose the file -> and click import
Apps
Don't worry so much about backing up your apps
on your computer go to
market.android.com -> log in -> click on My Library -> and send all your apps to your phone
SMS/MMS
if you don't want to use the backup & restore app then
Install "backup SMS" to back up your SMS and MMS to your Gmail
https://market.android.com/details?id=com.zegoggles.smssync&feature=search_result
or your SMS use
"backup & restore SMS"
https://market.android.com/details?id=com.riteshsahu.SMSBackupRestore&feature=search_result
or for your MMS use "Save MMS"
https://market.android.com/details?id=com.schwimmer.android.mmsextract&feature=search_result
Call Logs
And for call logs this is great
https://market.android.com/details?id=com.yang.android.ansta
My Phone Explorer
https://market.android.com/details?id=com.fjsoft.myphoneexplorer.client&hl=en
Don't forget to mark the Correct Answers & Helpful Answers
Other methods on how to install the Backup & Restore app and/or other apps that are stored on your SD card
1st Method
How to install it
You need to
go to settings -> applications -> check unknown sources
download IO File Manager
https://market.android.com/details?id=org.openintents.filemanager&feature=search_result
download the app on your computer, transfer it to your SD card, use OI file manager to find it -> tap on it -> install it
2nd method
download the apk on your computer, send it to yourself through email, make sure you send it to your Gmail
now on your phone
go to settings -> applications -> check unknown sources
wait for the email, once you get the email, open it, and instead of downloading the attachment it will allow you to install it, voila, done
3rd Method
BOX and upload the apks from any computer
install the App on your phone -> open BOX -> tap on the app -> install it
4th Method by far the easiest
an even Easier alternative
download the app, transfer it to your SD card
Download Apk Manager
https://market.android.com/details?id=com.magmamobile.app.apkinstaller&hl=en
open "Apk Manager" and voila select the apps that you wan't to install
Don't forget to mark the Correct Answers & Helpful Answers
oops !! 
is dat the only way to get access from my acc. 
Thaaanx 4 the Help 
but it's So Complicated ::smileyplain:
it's quite simple, just do this
Backup & Restore app
http://forum.xda-developers.com/showthread.php?t=1193802
or
http://www.elita-clan.com/downloads/backup_and_restore_v010935.apk
http://www.elita-clan.com/downloads/backup_and_restore_v010935.apkor
http://www.mediafire.com/?1n07llajeaoo03y
then
download the app, transfer it to your SD card
Download Apk Manager
https://market.android.com/details?id=com.magmamobile.app.apkinstaller&hl=en
open "Apk Manager" and voila select the apps that you wan't to install
and to be safe
Contacts
just to play it safe sync your contacts w/ google if you haven't already
open your phonebook
press MENU button -> tap on Send Contacts -> select all -> send it to your email
on your computer
-> download the file -> go to your gmail -> click on contacts -> click on more actions -> on the drop down menu click on "import" -> choose the file -> and click import
It's quite simple
Don't forget to mark the Correct Answers & Helpful Answers