This is where the magic happens for "better" performance. Because the PowerVR GE8322 is used across MediaTek and Unisoc, you can sometimes extract newer PVR (PowerVR) drivers from devices running newer Android versions.
How to do it:
Warning: Incorrect cross-flashing leads to a hard brick (black screen, no recovery). Only attempt this if you have a backup of your original super partition.
For non-rooted users, here’s how to improve drivers safely: unisoc ums9117 driver better
The Unisoc UMS9117, commonly marketed as the Spreadtrum SC9832E, is a 28nm Quad-Core Cortex-A53 SoC designed for ultra-low-cost 4G LTE smartphones and IoT devices. While the hardware is modest, its driver stack determines whether the chip is a sluggish e-waste generator or a surprisingly usable daily driver.
This review evaluates the official Unisoc drivers (Linux Kernel 4.14), the Mali GPU driver, ISP (camera) drivers, modem (baseband) RIL, and the state of mainline/Linux community support.
The UMS9117 uses 8 ARM Cortex-A55 cores (4x1.6GHz, 4x1.2GHz). The drivers for this are not generic ARM drivers; Unisoc heavily modifies them. This is where the magic happens for "better" performance
Rating: 1/10 (Essentially no open-source community)
Hardware: Unisoc UMS9117 integrated LTE Cat4 modem (150 Mbps down, 50 Mbps up)
Interface: USB CDC ECM + AT command channel over /dev/ttyS0
The Only Good: Basic functionality (preview, capture, video) works out-of-the-box on stock BSP. Important: You cannot just copy-paste these into a
Rating: 2/10
If you’re experiencing any of these issues, updating drivers is the solution: