Transfer contacts to SIM with black screen

[morphil]

hello to all,

I have a Xperia Arc (LT15i). All my contacts are stored on the phone's memory (not on the SIM card)

Unfortunately my phone no longer start up properly : the screen slightly lits when pressing the ON/OFF button, but no menu comes up, so no way to do anything ! I've read many similar posts on the forum advising to Update Software, but I fear that this will definitively destroy my contacts. So I tried first to backup them using PCC. Unfortunately, PCC needs the phone to be unlocked what is impossible without the screen 

So my questions :

Will Update Service REALLY remove all my contacts ?

Is there a way to transfer (copy) my contacts from the phone's memory to the SIM card WITHOUT using the menus (which I can't access !). Any magic keystroke sequence ???

Thanks for your help

[Hampus]

Hi and welcome to the community! Since you're new please be sure that you have checked out our Discussion guidelines.

If you perform a software repair via SUS or PCC, the phone memory will be erased. So your contacts will be removed if they are saved as phone contacts.

And as far as I know, it's not possible to perform a backup of your contacts if you cannot unlock the phone/navigate through the menus.