[RogerCox]

I have updated my Z10 to the latest software and lost all my contacts.

It also wont let me add a contact, I have restored my last back up still no contacts.

What can I do ???

[tsac]

The OS may be corrupted if you tried to do the upgrade over the air. Download the OS and do it on a PC. If you have an older backup try that. The latest may be corrupted.
The information on the Blackberry company site indicates this is a know issue with some devices after doing an upgrade. They do not have a resolution.

You can also try a battery pull to see if a reload helps.

[RogerCox]

I did it through my PC and BB Link, now the battery Is not holding a charge, do you think the device is corrupted.

[tsac]

It could be, do a wipe. It will restore to factory. Then see if it holds a charge.
After a wipe pull the battery, wait for a minute and put it back. If this does not help you may need to reload the OS .

[RogerCox]

If I restore to factory setting does that not wipe everything off ?

If it does can I restore to a back up ?

[tsac]

No the wipe deletes any added 3rd party apps. The factory reset should but may not completly clean the phone.
just do not put any apps back until you use it for a few days to see if it worked.
do a selective restore with contacts and email only.
if you restore the full backup it may put back any corrupted apps if that is the cause.
it's worth waiting for a few days.

[georgiesynder]

So tsac, what link can I use to download the latest software on my Q10? I am on T-Mobile and they are not pushing out updates anymore. I want to upgrade ASAP to SR 10.2.1.2977 (OS 10.2.1.3247). Thanks for the guidance!

[georgiesynder]

I neglected to mention that it is Q10 model SQN100-5, carrier branded (TMO), but carrier unlocked.

[knottyrope]

I have used Sachesi with great results
Upgrading BB10 OS Using Sachesi for an OTA-like Up... - BlackBerry Support Community Forums

[georgiesynder]

Thank you, but if I wish not to use Sachesi, then what link could I access to download directly when both BBLink and my phone both say that I have the latest software available (which it's not because 2977/3247 is!)

[knottyrope]

you would need an autoloader and they wipe the phone first before updating the OS

[funnybaba]

Having issues logging in to my blackberry app world, don't know how to go about it

[tsac]

funnybaba you should not jump into another post , create your own.

to answer your question

KB25594-How to complete the BlackBerry App World Storefront setup.

[funnybaba]

you are right

[funnybaba]

you are t=right

[funnybaba]

sup

[alicepattinson]

It cannot restored anymore if you didn't backed up it. :(