Ecovacs T20 Omni


Do not update firmware via OTA if you plan to ever root your device

ModelID: ecovacs.p1jij8
Codename: ZJ2231
OEM: Ecovacs
Firmware format: encrypted
Sound format:
SOC: Rockchip RK3326 (4x)
RAM: 512 MByte RAM
Flash: 512MByte NAND
WiFi: FN-Link 6223a
OS: Linux (+ROS) (4.14.x)
Released: Q2/2023


Camera: y
Mop: y (rotating)
Waterpump: y
Towerbumper: y
IR dropsensors: 6x
IR sidesensors: y
Frontsensor: Linelaser
Carpetsensor: y (ultrasonic)
Brush type: rubber+brush
Auto Empty: Yes (with default base station)
Auto Mop Cleaning: Yes (with default base station)
Cloud support: , ecovacs


Root supported? : y (Q3/2023)
Root method public? : y
Root complexity: easy (UART)
Valetudo support: n


Rooting How-to
TÜV privacy certification: y


Has Microphone. Has 2 sidebrushes. Same robot as T20 Turbo, but different base station. Camera cannot be used for live viewing. WARNING: The base station is voltage dependant only. Operation of the 110V base station in a region with 220V will make the auto empty fan explode!


first seen2023-12-10

app185b002d31fb2ba1166606a92ea0bb3fzj2231_fw-1.4.2.bin1.4.22023-03-15 01:24:0065,713 MBgl
app81321ab733f435da6e18bae4760bf09czj2231_fw-1.4.7.bin1.4.72023-03-30 07:10:0065,795 MBgl
app6425fc7a51e4001b5d3b76db745d2e1bzj2231_fw-1.5.4.bin1.5.42023-04-20 08:27:0065,756 MBgl
appcab953f8a6269f70958ffc4ac4950820zj2231_fw-1.17.0.bin1.17.02023-08-08 01:24:0066,566 MBgl
appa39630a99faed2c53f929ccac6010bc6zj2231_fw-1.22.0.bin1.22.02023-11-06 01:10:0066,574 MBgl


These logs are extracted from official firmware releases. They might or might not contain useful information.

app1.4.22023-03-15 01:24:00initial
app1.4.72023-03-30 07:10:00initial
app1.5.42023-04-20 08:27:00initial
app1.17.02023-08-08 01:24:001. Add deep washing and water-saving washing;
2. Add remote self-cleaning instructions on the APP end;
3. Map optimization for cleaning log, which can be zoomed in for viewing;
4. Fix other bugs.
app1.22.02023-11-06 01:10:00Fix known problems

[2] Active: A device is still sold, and receives support by the vendor or the community

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This information is collected over time by my rooted devices and stored in a database. There might be firmware older than this, but it is not listed here as I did not own a particular device at that time. There is no guarantee for accuracy of this information, as the availability of firmware might be device specific and region specific. Sometimes I don't have enough devices to cover all regions.

Note: If you use information from this table, please reference it, eg. "Dennis Giese, Robotinfo,".
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