Please find direct download link of firmware version A025USQS1AUE3 for the device Samsung Galaxy A02s, model SM-A025U below.
· The security of your device has been improved. At T-Mobile, our customer's privacy and security is incredibly important. We pride ourselves on making sure your mobile experience is safe and secure. It is strongly recommended that you install this security patch to protect your device. This will not consume your data. Please charge your device, do not turn off the device while the update is installing. During installation you cannot use your device at all, even to dial 9-1-1.