Roborock S4 Max

Roborock S4 Max picture, click to enlarge


ModelID: roborock.vacuum.a19
Codename:
Firmware format: C=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
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

released Firmwares
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

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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.