All Firmwares Updates to Galaxy A20
| Device name | Model | PDA Version | Region | OS | OS Version | Build Date | Changelist | Download |
| Galaxy A20 | SM-A205G | A205GUBU4ASK2 | PSP | 9 |  | Thu, 31 Oct 2019 22:26:46 +0000 | 16481871 |
| Galaxy A20 | SM-A205G | A205GUBU4ASK2 | CTI | 9 | | Thu, 31 Oct 2019 22:26:46 +0000 | 16481871 |
| Galaxy A20 | SM-A205G | A205GUBU4ASK2 | TGP | 9 | | Thu, 31 Oct 2019 22:26:46 +0000 | 16481871 |
| Galaxy A20 | SM-A205G | A205GUBU4ASK2 | PGU | 9 | | Thu, 31 Oct 2019 22:26:46 +0000 | 16481871 |
| Galaxy A20 | SM-A205G | A205GUBU4ASK2 | DOO | 9 | | Thu, 31 Oct 2019 22:26:46 +0000 | 16481871 |
| Galaxy A20 | SM-A205G | A205GUBU4ASK2 | ZTM | 9 | | Thu, 31 Oct 2019 22:26:46 +0000 | 16481871 |
| Galaxy A20 | SM-A205G | A205GUBU4ASK2 | CTU | 9 | | Thu, 31 Oct 2019 22:26:46 +0000 | 16481871 |
| Galaxy A20 | SM-A205G | A205GUBU4ASK2 | CTP | 9 | | Thu, 31 Oct 2019 22:26:46 +0000 | 16481871 |
| Galaxy A20 | SM-A205G | A205GUBU4ASK3 | CDR | 9 | | Wed, 06 Nov 2019 22:56:13 +0000 | 16481871 |
| Galaxy A20 | SM-A205G | A205GUBU4ASK2 | TPA | 9 | | Thu, 31 Oct 2019 22:26:46 +0000 | 16481871 |
| Galaxy A20 | SM-A205G | A205GUBU4ASK2 | EON | 9 | | Thu, 31 Oct 2019 22:26:46 +0000 | 16481871 |
| Galaxy A20 | SM-A205G | A205GUBU4ASK2 | MXO | 9 | | Thu, 31 Oct 2019 22:26:46 +0000 | 16481871 |