Forgot patttern lock with locked BootLoader

[AbuAzzam]

Hi

i have forgot my screen pattern for my Xperia M dual 2005

i have tried to insert my google account info but the response was "invalid username or password"

i have tried to hard reset it with pressing power and volume up together but the device boot normaly with no extra options.

i have tried to use emma but the response was "the phone in locked"

what can i do?

thanks

[Uliwooly]

You can use PCC

PC Companion (PCC)

Bridge (for Mac)

Alternatives on How to backup Xperias

http://talk.sonymobile.com/thread/36355

[Uliwooly]

There's another alternative either use MyXperia or Android Device Manager and reset your phone

https://www.google.com/android/devicemanager

but your phone has to be 

1. on
2. data on
3. gps on
4. your gmail account still on the phone 

[AbuAzzam]

hi

i have tried to use PCC but it needs phone to be attached and powered on

[Uliwooly]

Not quite, run PCC > repair/update > follow the steps > turn off your phone > also make sure that your phone its at least at 60% if not try my other suggestion 

[Thommo · Accepted solution]

To perform a system repair - This will factory reset your phone

Switch off your phone and unplug from Pc (Hold volume up and power for around 10 seconds)
Start PC Companion and select Support zone then Update my phone/tablet then in Blue Repair my phone/tablet and follow the onscreen instructions - When prompted connect your phone still switched off holding volume down or back button - This should start the repair or reformat process

If you are using Windows 8/8.1 or a 64bit operating system then adjust the settings for PC Companion and run in compatibility mode and chose Windows 7 or XP