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BlackBerry® OS Smartphones

New Contributor
Posts: 5
Registered: ‎09-27-2012
My Device: Blackberry Curve 8520
My Carrier: o2

Reload 507



i was given this advice on what to do with my blackberry;


Reload 507 means there is no OS on your device,To resolve your Problem please follow the KB  :


KB10144 : How to Force the detection of the BlackBerry smartphone using Application Loader .


But when i tried this it wouldn't work because my phone won't initially turn on so i can't use my blackberry desktop software to reset my device and download the OS.. it won't charge and will not load up when plugged into my laptop..what do i do?



New Contributor
Posts: 5
Registered: ‎09-27-2012
My Device: Blackberry Curve 8520
My Carrier: o2

Re: curve 8520 start up

It won't let me choose the third option on the KB, because my phone cannot initially start up in the first place, so it won't connect to the laptop, so updates can't take place. Does this mean I can't do it?
Posts: 95,509
Likes: 24,546
Solutions: 6,397
Registered: ‎04-01-2008
My Device: Passport • Z30 • Z10 • Torch9850 • Playbook
My Carrier: Verizon

Re: Reload 507

You will need to use BBSAK or JL_Cmder to wipe the device and subsequently load the OS to the device. Follow the instructions here:
For BBSAK, here is the link: http://bbsak.org/

If JL_Cmder does not work, follow this instructional:


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