[Please help] Spreadtrum/Unisoc SL8521E/SC9820E - Smartwatch Firmware
[Please help] Spreadtrum/Unisoc SL8521E/SC9820E - Smartwatch Firmware
(05-04-2022, 05:37 PM)bobi_11 Hello. I would like to know how to upload software to a smartwatch based on unisoc/spreadtrum sl8521e / sp9820e? The devices have a standard micro USB input. Unfortunately, when I try to upload the software via UpgradeDownload or Research Download, the device only charge and the computer does not detect it. There are also errors such as "user cancel" or "open port failed" or "waiting" while checking the baudrate. Additionally, the watch has only one button (on / off) and there is no volume button.
Of course, all drivers are installed (SPD_Driver_R4.20.4201; SPRD_NPI_USB_Driver_v1.4; SCIUSB2SERIAL) and the USB cable has data transmission (when you turn on the watch, it detects it as a portable memory). The watch works on Android 4.4 (KitKat)
Does anybody have an idea? Thanks in advance for your help
(07-04-2022, 04:31 PM)bobi_11 Unfortunately I don't have. Is it necessary to upload the firmware to this chipset?
For other types of watches based on the sp9820e chipset, we use a different cable (magnetic, 5-pin) and we can upload the software.
(09-04-2022, 08:45 AM)maxpayne Just wanted to see how it handles this watch in diag mode
Lookup how to make a modified Unisoc / SPD cable, hope that helps
what is the smartwatch model name?
(09-04-2022, 12:16 PM)bobi_11 The model of the watch is tky-t58. I determined that we probably need the cable that the picture attached. How is this cable different from a typical microUSB cable?
(14-04-2022, 05:23 PM)bobi_11 I modified the microUSB cable (I've connected GND and ID pins in micro usb plug). Software starts to load but at some point I get an error (I'm using the latest UpgradeDownload version). I'm attaching a picture.
I tried to upload the software to smartwatch via ResearchDownload but here also sometimes a problem - after starting the smartwatch it appears that SN (serial number?) is invalid and then the watch turns off. Which item should I uncheck in the backup tab of ResearchDownload?
(15-04-2022, 08:59 AM)maxpayne You should untick all NV items on the list when flashing
(15-04-2022, 07:41 PM)bobi_11 Okay, I think I have the last questions.
Should I uncheck the parameters in the backup tab like on pictures 1-4 or in the "main page" tab uncheck the items marked in yellow (picture 6)?
If I uncheck IMEI in backup tab I get information that IMEI will be deleted (picture 5).