sony update engine failure (error 2003)

[YoSr]

hey there

when i connect my phone into pc it says there is an update avilable and when it start i get this error

"sony update engine failure (error 2003)"

pleas advice to get update thanks alot

[Aakash9]

what to do please help ?

[Uliwooly]

you have to relock it (google xda forum xperia arc relock bootloader)

[Prasadmshetty]

My phone is in 2.3.4 android...am updating but its showing sony update engine failure (error 2003) like this in Sony PC companion and after am trying to update in update serivice its showing you have modif software plsssssss guide me wt to do???????

[Prasadmshetty]

My phone is MT11I sony experia nevo V

[zoma]

I had unlocked my bootloader to my xperia M2 and now when I try to update software using Sony PC Companion 2.1 I got 

sony update engine failure (error 2003) ,, plz what can i do and how to relock boatloader

[msf1077252]

You should re lock your bootloader bro for this to work 

I sld suggest u Xperia Flashtool it has a BLU option that automatically locks and unlocks bootloader 

u just have to download this and click on the BLU button on the Left Top then just swith off your phone keep the Vol Down key pressed and attach the phone to computer via USB and it will ask u model number choose appropriate and then it wld ask you to Lock bootloader and you are done