is inifinix a9900 a good phone and can the android version be changed from 5.1 to 7.5

[Android Central Question]

is inifinix a9900 a good phone and can the android version be changed from 5.1 to 7.5

 

[hallux]

If it's on 5.1 still, it likely won't get 7.x (there was no 7.5), especially with only 8 GB of internal storage.

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