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README: Be more descriptive

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# Device Tree for Samsung Galaxy A Series (Exynos7885) (2019)
The Galaxy A10/A20/A20e/A30/A40 (codenamed "a10/a20/a20e/a30/a40") is a low-end smartphone from Samsung. It was released on 2019 April.
## Specs
# Device Trees for universal7885 unified
The Samsung Galaxy A10,A20,A20e,A30,A40 are budget smartphones from Samsung. These are announced and released in the year 2019.
| Component | Specification |
| :---------------------- | :-------------------------------- |
| Chipset | Exynos 7885 |
| Memory | 3/4 GB |
| Storage | 32GB |
| Battery | (differs from model) mAh |
| Dimensions | 158.4 x 74.7 x 7.8 mm |
| Display | 720 x 1560 pixels, 19.5:9, 268PPI |
| Release Date | 2019 April |
# Device List
- Samsung Galaxy A10 (exynos7884)
- Samsung Galaxy A20 (exynos7884)
- Samsung Galaxy A20e (exynos7884)
- Samsung Galaxy A30 (exynos7904)
- Samsung Galaxy A40 (exynos7904)
## Device Picture
# Why universal7885? isn't that another SoC made by Samsung?
- yes it does, exynos7884 and exynos7904 are 2nd and 3rd revisions of exynos7885 with lower CPU and GPU clockspeed and have newer Mali GPU drivers
![Galaxy A20](https://fdn2.gsmarena.com/vv/bigpic/samsung-galaxy-a20e.jpg "Galaxy A20e")
## Device specifications (Galaxy A10)
| Feature | Specification |
| :---------------------- | :---------------------------------------------------------------|
| Chipset | Samsung Exynos 7884B (14 nm) |
| CPU | Octa-core (2x1.6 GHz Cortex-A73 & 6x1.35 GHz Cortex-A53) |
| GPU | Mali G71 MP2 |
| Memory | 2/4 GB |
| Shipped Android Version | 9.0 |
| Storage | 32 GB |
| Battery | Li-Ion 3400 mAh, non-removable |
| Display | 6.2 inches, 95.9 cm2 (~81.6% screen-to-body ratio) |
| Rear Camera | 13 MP, f/1.9, 28mm (wide), AF |
| Front Camera | 5 MP, f/2.0 |
## Device specifications (Galaxy A20/A20e)
| Feature | Specification |
| :---------------------- | :---------------------------------------------------------------|
| Chipset | Samsung Exynos 7884 (14 nm) |
| CPU | Octa-core (2x1.6 GHz Cortex-A73 & 6x1.35 GHz Cortex-A53) |
| GPU | Mali G71 MP2 |
| Memory | 3 GB |
| Shipped Android Version | 9.0 |
| Storage | 32 GB |
| Battery (A20) | Li-Ion 4000 mAh, non-removable |
| Battery (A20e) | Li-Ion 3000 mAh, non-removable |
| Display (A20) | 6.2 inches, 95.9 cm2 (~81.6% screen-to-body ratio) (sAMOLED) |
| Display (A20e) | 5.8 inches, 82.6 cm2 (~80.4% screen-to-body ratio) (PLS IPS) |
| Rear Camera 1 | 13 MP, f/1.9, 28mm (wide), AF |
| Rear Camera 2 | 5 MP, f/2.2, 12mm (ultrawide) |
| Front Camera | 8 MP, f/2.0 |
| Fingerprint | Rear-mounted |
## Device specifications (Galaxy A30)
| Feature | Specification |
| :---------------------- | :---------------------------------------------------------------|
| Chipset | Samsung Exynos 7904 (14 nm) |
| CPU | Octa-core (2x1.8 GHz Cortex-A73 & 6x1.7 GHz Cortex-A53) |
| GPU | Mali G71 MP2 |
| Memory | 3/4 GB |
| Shipped Android Version | 9.0 |
| Storage | 32/64 GB |
| Battery | Li-Po 4000 mAh, non-removable |
| Display | 6.4 inches, 100.5 cm2 (~84.2% screen-to-body ratio) |
| Rear Camera 1 | 16 MP, f/1.7, 27mm (wide), PDAF |
| Rear Camera 2 | 5 MP, f/2.2, 12mm (ultrawide) |
| Front Camera | 16 MP, f/2.0, 26mm (wide), 1/3.06", 1.0µm |
| Fingerprint | Rear-mounted |
## Device specifications (Galaxy A40)
| Feature | Specification |
| :---------------------- | :---------------------------------------------------------------|
| Chipset | Samsung Exynos 7904 (14 nm) |
| CPU | Octa-core (2x1.8 GHz Cortex-A73 & 6x1.7 GHz Cortex-A53) |
| GPU | Mali G71 MP2 |
| Memory | 4 GB |
| Shipped Android Version | 9.0 |
| Storage | 64/128 GB |
| Battery | Li-Po 3100 mAh, non-removable |
| Display | 5.9 inches, 85.5 cm2 (~85.5% screen-to-body ratio) |
| Rear Camera 1 | 16 MP, f/1.7, 26mm (wide), PDAF |
| Rear Camera 2 | 5 MP, f/2.2, 13mm (ultrawide) |
| Front Camera | 25 MP, f/2.0, 25mm (wide), 1/2.8", 0.9µm |
| Fingerprint | Rear-mounted |