Thank you @cgmisola , after several attempts provided firmware will load, and t1000 will reboot with 2.5 firmware! Be aware to update with your phone close to the t1000, without any other bluetooth interference!
Thank you @cgmisola , after several attempts provided firmware will load, and t1000 will reboot with 2.5 firmware! Be aware to update with your phone close to the t1000, without any other bluetooth interference!