This is the official Blu G91 smartphone user manual in English provided from the manufacture.
The Blu G91 recently certified by the FCC under FCC ID YHLBLUG91!
Jan 3, 2021, The Upcoming Blu G91 smartphone arrived on FCC in the US hinting at its imminent launch!
As per the SAR TEST report for the Blu G91 smartphone, the device supports:
WCDLVLA Band 2
WCDLVLA Band 4
WCDLVLA Band 5
LTE Band 2
LTE Band 5
LTE Band 7
LTE Band 12
LTE Band 17
The FCC filings also disclosed the external photos, TEST setup photo, Internal photos and the manual for the Blu 91.
From the below link, you can download the Blu G91 manual leaked by the FCC.
Download Blu G91 User Guide / Manual