Doesnt switch on after update to 10.3.1

Question

after update was completed the battery was drained full and it doesnt switch on and it shows a bettery symbol with a cut on it

Answer 1

Hi and Welcome to the Community!
Please try this sequence...note that, throughout the entire 4h15m process, your BB must remain directly connected to a known-good wall charger (not PC USB, not a cradle):
With the battery inside, connect your BB to the wall charger
Leave it alone for 2 hours, no matter what the LED or the display does
Remove the battery
Wait 15 minutes
Insert the battery
Wait another 2 hours, no matter what the LED or the display does
This has been known to "kick start" some BBs. If it fails, please try again but increase the wait time in step 4 to 2 hours, and perhaps as long as 4-5 hours.
It is also possible that your battery or BB has experienced a problem...to test, this sequence is needed:
Obtain an known good and already fully charged additional battery...use it in your BB and see what happens
Obtain access to a known good and identical BB...use your battery in it and see what happens
The results of this will indicate if it's your BB or your battery that has the problem. Note carefully please that "new" and "know good" are not necessarily the same things. While rare, a "new" battery certainly could be defective. Rather, the simplest (and least costly, btw) method to conduct this test is to find someone with an identical BB who has no issues...trade batteries and see what happens.
It is also possible that the OS update was somehow corrupt. Due to the number of problems with "upgrading" to this OS level, I suggest you try the very clean and very forceful AutoLoader OS Reload:
http://supportforums.blackberry.com/t5/BlackBerry-10-OS-Device-Software/Upgrading-OS10-devices-using...
Beware that it is completely destructive...the device will be "like new"...no data, no apps, no accounts, etc. Be sure you take a full backup first, as well as make full manual documentation of all apps, accounts, configurations, etc. Sometimes a restore reintroduces the very corruption one is trying to eliminate, and manual reconfiguration is necessary.
You can also use this to fall back to a prior OS if you desire...you can install any OS level for which you can find an AutoLoader. (Hint...search over on the CB site!)
Good luck and let us know!
Occam's Razor nearly always applies when troubleshooting technology issues!
If anyone has been helpful to you, please show your appreciation by clicking the button inside of their post. Please click here and read, along with the threads to which it links, for helpful information to guide you as you proceed. I always recommend that you treat your BlackBerry like any other computing device, including using a regular backup schedule...click here for an article with instructions.
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