A54 banking apps crashed due to devices is modified

[Nuruddin sarker]

I brought galaxy A54 from Aliexpress which is A546E ds 8/256gb.

The device IMIE number is available in the internet server but one time was shown 0.after restart the device it's shown number.

I notice some bank apps is not suppprt due to the device is modified and bank security issues showing.

also today my device lock screen was block for 30 minutes due to showing many attempts while i didn't touch my mobile.

now I'm planning to factory reset my device.

Kindly suggest me, if i do  factory reset my modified device, will it be working properly or another issue will be face? 

Also after factory reset the device will be become official device or rotten due to already modified?

Kindly suggest me.

Thank you in advanced 

[LongHiker · Accepted solution]

@Nuruddin sarker  The best option is to return the device and buy from a reputable source. There is a good chance that the great deal you found is because the device was compromised, or is fake. 

[Robin621k]

Aliexpress has tons of fake products!

[meself]

Think you did a imei post same phone best to return the phone