09-13-2016, 08:26 PM
Join Date: Mar 2005
Location: Others run out when we run in
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| | Re: Latest OS: 8520 18.104.22.1688/22.214.171.1247 (All Languages)
The 8520 is fairly old but you can try doing a search on the internet for updates and information on the highest available. there are also some YouTube links showing how to update.
You should do a full backup before doing anything.
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