How to Flash Sony Xperia C3 Dual D2502 with Flash tool ? (tested)

Do you have Sony Xperia C3 Dual D2502 ?  and problem in like Hang on Logo, Restarting, Hang, Pattern Lock, Screen Lock ? these one any issue in device don't worry you can easy solve using this guide, before use just checks device in hardware like shorting , if device shorting does not try to flash or upgrade, some time dead when flash or upgrade if shorting, also check USB Socket its working or not, check USB cable its is better quality or not if low-quality use sometimes device not detect I suggest to everyone who following this guide use quality cable or Original cause can easy to flash, this guide you can use when device in auto internet data connection starting, auto wi-fi starting, automatically installing apps, this is better way for these type problems solved, first take backup all type data like Contacts, Videos, Photos, Emails, Notes etc it's factory stock ROM after done job you can't save any data better take first after try to flash or upgrade,

This ftf  stock ROM tested by me it's just done in one try without any error before use must check your device battery it's charged or not, do not try with low battery cause phone will be dead and many issues created, also check corrupted or not, let's go know How to Flash or Upgrade Sony Xperia C3 Dual D2502 in Sony Flash tool ?

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• You have to charge your battery with any charger and charged it by 70%.
• Your data is very important for you so it is good to do a backup of your data it may consist of your contact details, your important messages, your emails or any other important thing which you feel to be the backup in your device.
• This backup can be done on another device. we have to do the backup because after a format of your device, all your data will be gone and it will not be recovered.
• For backup in other devices, you can use another external device like your hard drive, sd card or any other suitable devices.
• If you are doing by your own. Do it at your own risk as we don't take any responsibility if your device is damaged

Required for Sony Xperia C3 Dual D2502 to Flash or Upgrade: