The P30 and P30 Pro appear to be receiving an update in China that brings with it DC Dimming features along with much needed in-display fingerprint reader improvements.
The DC Dimming technique essentially adjusts the DC current to dim the display. The only problem with this method is that visible display quality can suffer, which is arguably why the feature is not found on more than a handful of devices at present.

The update measures in at a steady 400MB and brings devices to the 9.1.0163D firmware.
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HUAWEI P30 PRO SPECIFICATIONS:
DISPLAY
Size:
6.47 inches
Colour:
16.7 million colours
Colour Gamut:
Wide Color Gamut(DCI-P3)
Type: OLED
Resolution:
FHD+ 2340 x 1080
OPERATING SYSTEM
Android 9
PROCESSORS
HUAWEI Kirin 980 Octa-core Processor
Dual NPUs(Neural-network Processing Unit)
2 x Cortex-A76 Based 2.6 GHz+ 2 x Cortex-A76 Based 1.92 GHz + 4 x Cortex-A55 1.8 GHz
MEMORY
8 GB RAM + 256 GB ROM
CONNECTIVITY
802.11 a/b/g/n/ac (wave2), 2.4 GHz and 5 GHz
Bluetooth 5.0, BLE, SBC, AAC, aptX, aptX HD, LDAC and HWA Audio
Type-C,USB 3.1
SENSORS
Ambient Light Sensor
In-Screen Fingerprint Sensor
Gyroscope
Compass
Proximity Sensor
Gravity Sensor
Hall Sensor
Infrared Sensor
Colour Temperature Sensor
CAMERA
Rear Camera:
Leica Quad Camera:
40 MP (Wide Angle Lens, f/1.6 aperture,OIS) + 20 MP (Ultra Wide Angle Lens, f/2.2 aperture) + 8 MP (Telephoto, f/3.4 aperture,OIS)
HUAWEI Time-of-Flight (TOF) Camera
supports autofocus (phase focus, contrast focus), supports AIS (HUAWEI AI Image Stabilization).
Front Camera:
32 MP, f/2.0 aperture
Note: In different photo modes, the number of pixels may be slightly different, please refer to the actual situation.
*The photo pixels may vary depending on the shooting mode.AUDIO
Dolby Atmos (Dolby Digital, Dolby Digital+, Dolby AC-4)
mp3, mp4, 3gp, ogg, amr, aac, flac, wav, midi
VIDEO
3gp, mp4
EMOTION UI
BATTERY
4,200mAh (Typical Value)*
LOCATION
GPS (L1 + L5 Dual Band)/AGPS/Glonass/BeiDou/Galileo (E1 + E5a Dual Band)/QZSS (L1 + L5 Dual Band)
SPLASH, WATER, AND DUST RESISTANT
IP68
Your device has been tested in a controlled environment and certified to be splash, water, and dust resistant in specific situations (meets requirements of classification IP68 as described by the international standard IEC 60529).
Water and dust-proofing are not permanent, and resistance may decrease as a result of normal wear over time. Do not charge the phone when it is wet or in moist environments. Refer to the manual for cleaning and drying instructions. Submersion in liquid and the resulting damage is not covered by the warranty.
IN THE BOX
Phone(Built-in battery) x 1
Charger x 1
Type-C Cable x 1
Type-C Earphones x 1
TPU Protective Case x 1 (No in Western Europe and Northeast Europe)
Quick Start Guide x 1
Eject Tool x 1
Warranty Card x 1
(Note: Subject to the actual product.)
CHARGING
HUAWEI SuperCharge (Max 40 W)
HUAWEI Wireless Quick Charge (15 W)*.