Roborock S4 Max

END OF LIFE / END OF SALE[1]

Roborock S4 Max picture, click to enlarge


ModelID: roborock.vacuum.a19
Codename:
SKU:
OEM: Roborock
Firmware format: enc(AES-256-CBC), signed (RSA), sqfs
Sound format: B=enc, signed, sqfs, ogg
SOC: Allwinner R16 (4x)
RAM: 256 MByte
Flash: 256MByte NAND
MCU: STM32F103VCT6
WiFi: RTL8189ETV
OS: Ubuntu 14.04 (3.4.x)
Released: Q4/2020

Features

LIDAR: y
Camera: n
Mop: n
Waterpump: n
Towerbumper: y
IR dropsensors: 4x
IR sidesensors: y
Frontsensor: IR
Carpetsensor: n
Brush type: rubber+brush
Auto Empty: No
Auto Mop Cleaning: No
Cloud support: 4.1.2, tuya

Rootability

Root supported? : y (Q4/2020)
Root method public? : y
Root complexity: disassembly, simple soldering
Valetudo support: y

Ressources

Custom Firmwarebuilder (Dustbuilder)
Rooting How-to

Firmwares

Regioncndeus
first seen2020-08-012021-05-092020-12-17

TypeMD5FilenameVersionDatetimeSizeRegions
appdaac77a643156722e13b35fd167ff649daac77a643156722e13b35fd167ff649_upd_roborock.vacuum.a19.bin4.1.2_01162020-10-22 06:15:0024,451 MBde,ru,sg,us
app4b94860d6b648e17420f1e4a6ceae23a4b94860d6b648e17420f1e4a6ceae23a_upd_roborock.vacuum.a19.bin4.1.2_03562021-02-05 04:12:0024,572 MBus
app6730fdbe1b292a9dd82c886fa6e913c36730fdbe1b292a9dd82c886fa6e913c3_upd_roborock.vacuum.a19.bin4.1.2_04022021-05-14 10:29:0024,968 MBde,us
appa7d1ad0686d60f99efe16026f24670d8a7d1ad0686d60f99efe16026f24670d8_upd_roborock.vacuum.a19.bin4.1.2_04142021-06-10 07:56:0025,728 MBde,us
appa56fecba3a491eeff636f73ddf72d3cea56fecba3a491eeff636f73ddf72d3ce_upd_roborock.vacuum.a19.bin4.1.2_04622021-09-14 07:36:0026,042 MBde,us
app9a534450aee431b6b6c3105a8eef218d9a534450aee431b6b6c3105a8eef218d_upd_roborock.vacuum.a19.bin4.1.2_04782021-11-29 01:28:0026,045 MBde,us

Changelogs

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

TypeVersionDatetimeChangelog
app4.1.2_01162020-10-22 06:15:00RTM
app4.1.2_03562021-02-05 04:12:00- Improved user experience Squashed some bugs
app4.1.2_04022021-05-14 10:29:00- Bug fixes and UI optimization
app4.1.2_04142021-06-10 07:56:00- Bug fixes and UI optimization
app4.1.2_04622021-09-14 07:36:00-If using Selective Room Cleaning or Zone Cleaning and cleaning an area twice or more, the robot will now clean in a cross hatch pattern.
-Bugs squashed. User experience improved.
app4.1.2_04782021-11-29 01:28:00-Squashed some bugs, refined the user experience.

[1] END OF LIFE / END OF SALE: Devices get this flag if we see that they did not receive firmware updates for a long time or are not available anymore in specific regions. Same applies if the model was replaced with a new one.


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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, https://robotinfo.dev".
Please contact me prior using any of the images.