You can simply use autoloader to go back to the official OS. If you are using the Z10 or any other BB 10 devices, turn off your phone and remove the battery first, then run the autoloader and connect your phone. When the autoloader process begins, insert the battery back.

It is recommended to wipe your device using security wipe after you finish the autoloader process.

Remember that using autoloader will delete all of your settings and data stored in the phone memory so make sure you do a backup first. Also, make sure that you download the autoloader made for your phone.

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  1. hi! i reset my bb z10 and 2 times incomplete because of lack of battery. and now, if i turn it on, appears and i dont know what to do

    1. What do you mean by lack of battery? You should try to reset your z10 again by inserting the battery and using the correct autoloader file.

  2. Download autoloader from this link here:

  3. I have loaded BlackBerry z10 slt-100 BlackBerry dev alpha 10.3.3 but this os is very disgusting so I want my bb10.3.2 version back

    Please tell how to downgrade to 10.3.2 please help