How do I factory reset

[Josephmcn]

I have been trying to figure out how to do a factory reset on this device the only problem is I have tried all 10 different codes I have found in your forum and none of them are working
123456
8888
3368
126
518
1234
0000
9876
7890
Do you have any other suggestions on what I can try to get this to work

[Jammy]

Hi,
please first tell me your order number in amazon or buyer id in ebay,Pumpkin or AliExpress so that we can confirm more information about your unit and provide you positive solutions .
Is there anything wrong with your unit?
Regards

[xaris66]

this is my model:https://www.ebay.com/itm/RAM-2GB-DSP-1024-600-Touchscreen-Android-Quad-Core-Car-Stereo-Radio-USB-3G-Bass-/311949623904?_trkparms=aid%3D111001%26algo%3DREC.SEED%26ao%3D1%26asc%3D20140131123831%26meid%3D3e041b89208c4b9ca3a4fc057a015c15%26pid%3D100170%26rk%3D1%26rkt%3D1%26sd%3D311949623904&_trksid=p2047675.l2557&nma=true&si=oY7FyH0sYonFMjmENVIfuIkTT6s%253D&orig_cvip=true&rt=nc
who factory reset number?

[Jammy]

Hi xaris66 ,
In the page of the bluetooth call,input ##3188 and calling ,then enter factory settings page.
Regards

[xaris66]

every time I opened it the sound was in max. I tried to upgrade it to 5.1 and it stuck and does not open. I can do it 4.4; and how?
thanks.

[xaris66]

every time I opened it the sound was in full. i tried to upgrade it to 5.1 and it stuck. how can i restore it?

[xaris66]

[youtube=]https://youtu.be/l6w43G-joz8[/youtube]

[Jammy]

Hi,
this is an old radio which had been sold out for a long time and there is no firmware to flash it again.
We don't suggest our clients flash the unit without our guidance.Sorry that i am unable to help you.
Regards