A: Yes. The E10 or E6 indicates a minor revision for Latin American carriers (Claro, Movistar, etc.). The standard C605 firmware is compatible.
Downloading firmware from unofficial sources carries several risks: huawei p30 lite marlx3a firmware download verified
Thus, the word “verified” in the essay title is critical. Verified means the firmware file’s hash matches an official release from Huawei’s servers. Recovery / Fastboot (if supported and unlocked):