A566EXXUEDZJ1 – Galaxy A56 5G firmware
Build A566EXXUEDZJ1 is a feature update for the Galaxy A56 5G (SM-A566E)
on Android 17 (One UI 9). It first appeared on Samsung's servers on Oct 18, 2026 (method) and has reached
23 regions so far. It keeps bootloader bit 14, so downgrading to the previous build A566EXXSECZI3 is still possible. Samsung still serves this file.
- Model
- SM-A566E
- Android
- Android 17
- Type
- Feature
- Bootloader bit
- 14
- First released
- Oct 18, 2026
- Regions
- 23
Not yet released in 22 regions that are still on an older build: ARO, CDR, CHE, CHL, CHO, CHT, COB, COL, COM, COO, CTI, EBE, ECO, PEO and 8 more.
Rollout timeline by region
The date each region code (CSC) first received A566EXXUEDZJ1, counted from the first release.
| CSC | Region | Released | Rollout | Version (PDA/CSC/MODEM) |
|---|---|---|---|---|
CAU | Caucasus | Oct 18, 2026 | day 0 | A566EXXUEDZJ1/A566EOXEEDZJ1/A566EXXUEDZJ1 |
SER | Russia | Oct 18, 2026 | day 0 | A566EXXUEDZJ1/A566EOXEEDZJ1/A566EXXUEDZJ1 |
SKZ | Kazakhstan | Oct 18, 2026 | day 0 | A566EXXUEDZJ1/A566EOXEEDZJ1/A566EXXUEDZJ1 |
GTO | Guatemala | Oct 19, 2026 | +1 day | A566EXXUEDZJ1/A566EOWOEDZJ1/A566EXXUEDZJ1 |
BKD | Bangladesh | Oct 21, 2026 | +3 days | A566EXXUEDZJ1/A566EODMEDZJ1/A566EXXUEDZJ1 |
INS | India | Oct 21, 2026 | +3 days | A566EXXUEDZJ1/A566EODMEDZJ1/A566EXXUEDZJ1 |
NPB | Nepal | Oct 21, 2026 | +3 days | A566EXXUEDZJ1/A566EODMEDZJ1/A566EXXUEDZJ1 |
SLK | Sri Lanka | Oct 21, 2026 | +3 days | A566EXXUEDZJ1/A566EODMEDZJ1/A566EXXUEDZJ1 |
CGU | Guatemala (Claro) | Oct 22, 2026 | +4 days | A566EXXUEDZJ1/A566EOWOEDZJ1/A566EXXUEDZJ1 |
ZTA | Brazil (Claro) | Oct 22, 2026 | +4 days | A566EXXUEDZJ1/A566EOWOEDZJ1/A566EXXUEDZJ1 |
ZTM | Brazil (TIM) | Oct 22, 2026 | +4 days | A566EXXUEDZJ1/A566EOWOEDZJ1/A566EXXUEDZJ1 |
ZTO | Brazil | Oct 22, 2026 | +4 days | A566EXXUEDZJ1/A566EOWOEDZJ1/A566EXXUEDZJ1 |
ZVV | Brazil (Vivo) | Oct 22, 2026 | +4 days | A566EXXUEDZJ1/A566EOWOEDZJ1/A566EXXUEDZJ1 |
IUS | Mexico (AT&T) | Oct 28, 2026 | +10 days | A566EXXUEDZJ1/A566EOWOEDZJ1/A566EXXUEDZJ1 |
MXO | Mexico | Oct 28, 2026 | +10 days | A566EXXUEDZJ1/A566EOWOEDZJ1/A566EXXUEDZJ1 |
TCE | Mexico (Telcel) | Oct 28, 2026 | +10 days | A566EXXUEDZJ1/A566EOWOEDZJ1/A566EXXUEDZJ1 |
TMM | Myanmar | Oct 28, 2026 | +10 days | A566EXXUEDZJ1/A566EOWOEDZJ1/A566EXXUEDZJ1 |
BVO | Bolivia | Oct 29, 2026 | +11 days | A566EXXUEDZJ1/A566EOWOEDZJ1/A566EXXUEDZJ1 |
TPA | Panama | Oct 29, 2026 | +11 days | A566EXXUEDZJ1/A566EOWOEDZJ1/A566EXXUEDZJ1 |
GLO | Nigeria (Glo) | Nov 5, 2026 | +18 days | A566EXXUEDZJ1/A566EOWOEDZJ1/A566EXXUEDZJ1 |
PGU | Guatemala | Nov 5, 2026 | +18 days | A566EXXUEDZJ1/A566EOWOEDZJ1/A566EXXUEDZJ1 |
CRC | Costa Rica | Nov 5, 2026 | +18 days | A566EXXUEDZJ1/A566EOWOEDZJ1/A566EXXUEDZJ1 |
DOR | Dominican Republic | Nov 5, 2026 | +18 days | A566EXXUEDZJ1/A566EOWOEDZJ1/A566EXXUEDZJ1 |
Download and release notes
samloader download -m SM-A566E -r INS -v A566EXXUEDZJ1/A566EODMEDZJ1/A566EXXUEDZJ1Samsung's release notes and security patch level for this update: SM-A566E / INS on doc.samsungmobile.com. What each part of the build number means: decode A566EXXUEDZJ1.