No. MT6261 series lacks recovery mode with update from SD card. PC + USB cable is mandatory.
To flash the Nokia TA-1203, you need a Windows PC (7/8/10/11) and the following: nokia ta 1203 flash file
: It is used to fix common software issues such as a stuck logo (boot loop), "Contact Service" errors, or unexpected white screens. "Contact Service" errors
To flash the TA-1203, you need specific software components to communicate with the device's internal memory. NOKIA-105-TA-1203-SS-BLACK-OEM-en nokia ta 1203 flash file