Guide: Reset your Lumia

[Guytronic]

If you need to factory reset your Lumia and the screen is working.
Follow this simple screenshot guide for Lumia WP8.0\8.1 phones:



Flick from your homescreen to the applist tap settings (WP8 or WP8.1)
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Settings can be opened from notification also (WP8.1 only)
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Move down the list in settings to find "about" and tap
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"reset your phone" will available on very bottom
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tapping reset brings up this dialog
accept to return to the last firmware downloaded to your device
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*A back-up is recommended right before resetting.
The battery should be at full charge prior to returning to factory settings.
A full (Hard reset) can take up to 20 minutes depending on your system files.
Note*
"This won't downgrade your phone from 8.1 to 8.0"

 

[Laura Knotek]

Thanks for this tutorial! This will be helpful for a lot of members.

 

[archimess]

I hard reseted my phone and now i cant understand the startup language. How to change it before going onwards? (I really hope someone sees this fast.)

 

[Guytronic]

Any chance you could put up a screenshot here so we could figure out which language your seeing?

 

[archimess]

its Portuguese, i know that. But i fuc*ed up. I did hard reset for a second time after, and now i can't reset my phone. I used google translate the second time.
As i know there is no way to restore your windows phone after that. Any chance I'm wrong?

 

[archimess]

Now my phone in the about menu is not letting me to reset my phone. There are some Demo Content stuff in the app menu, and in the about menu instead of the reset button there is update demo content, wtf happened?

 

[Guytronic]

Not sure why the phone couldn't be reset more than twice.

I'd try the volume down+power button+camera button at the same time method with your 820.
Have the phone on a charger while trying.

 

[archimess]

I had to take back my 820 to WP8 with Nokia Software Recovery, and now updating to 8.1. Hope that the demo mode won't happen again.
This was not cool at all. Still don't get why the startup screen displays Portuguese. Maybe the phone was meant for that market idk.

 

[Guytronic]

Did you get back successfully?

 

[pankaj981]

He had a phone with a demo rom on it, it was bound to happen unless him resetting the phone magically turned the rom into a demo rom which is highly unlikely.

 

[Guytronic]

He had a phone with a demo rom on it, it was bound to happen unless him resetting the phone magically turned the rom into a demo rom which is highly unlikely.

Wow weird.
I have never heard of this until now.
What would be the history of the device?

 

[pankaj981]

Wow weird.
I have never heard of this until now.
What would be the history of the device?

Not sure but the op would know it better, i guess he/she bought it used from someone. He/she could either flash it to a non-demo rom of the same variant (rm-xxx) and it would work as expected or contact Nokia/Microsoft and let them know that he/she has a demo device (retailers aren't supposed to sell these devices) so they can help, who knows they might end up giving a new devices in return

 

[anon(7900571)]

Thanks for this Excellent guide Guytronic :wink:

 

[archimess]

Ok, I'm not really active on the forums, so I'm seeing this just now.
I bought my phone, new, from a retailer with a great reputation and I was the one opening the box.
This is not a demo device, it was just a bug with the RC WP8.1 on the first update, that made the phone download a demo version of a ROM, when you restart your phone more then 2 times in one day.
As people on Microsoft's WP forums informed me, this is fixed with the second 8.1 update, but I don't wanna risk it again. It opens too much work.

Sorry for the late response. I hope I've cleared everything up.

 

[soul347]

If you follow this procedure, will this bring you back to windows phone 8.0 or will it remain as 8.1 preview?

 

[Guytronic]

If you follow this procedure, will this bring you back to windows phone 8.0 or will it remain as 8.1 preview?

Returns the phone to the last firmware version installed on the phone.
WP 8.0>8.0
WP 8.1 Preview>8.1 Preview

 

[Skamath]

Returns the phone to the last firmware version installed on the phone.
WP 8.0>8.0
WP 8.1 Preview>8.1 Preview

WP8.1(Cyan) Update1 Preview>?

Reason Being Last know firmware version was Cyan with 8.1 and the GDR1 is not Firmware just OS and I am also considering to go back to 8.1 out of DP.

I wanted to chk out Cortana and I think I would like to wait for her when it gets here in Aus and not the US version ( If I read it right somewhere on WPCentral not long to go)

 

[Jack David]

Thanks! This will be helpful for a lot of members.

 

[Prajeesh Mkr]

i have one nokia lumia 624 i was try to reset 6 hours before but phone is do not open still showing reset

 

[Snippyr1]

I did a hard reset on my windows 8.1 lumina phone cause I was gonna give it to my friend after I hard reseted it I turned it off and gave it to her when she turned it on it showed a screen that it wanted a verication code when I had it it worked fine I never had a problem with it up until I factory reseted it when I first got it from somebody a year ago I factory reset and it went through just fine I was only using it with WiFi it's a ATT phone but the person I got it from had a cricket service account with it how do I get past the verication code