updateFirmware invokes multiple factory resets on iOS

[korzonkiee]

Platform on which you observed the bug:

• Android
• iOS
• Other
• Platform is not relevant for this bug

Device on which you observed the bug:

• Polar OH1
• Polar Verity Sense
• Polar H10
• Polar H9
• Other
• Device is not relevant for this bug

Describe the bug

While reviewing the iOS implementation, I noticed that a factory reset is performed before each file is written to the device (link), followed by an additional reset after all the files have been written (link). So for example, when updating Polar 360 from version 1.1.0 to 1.1.24, two firmware files—SYSUPDAT.IMG and BTUPDAT.BIN—are involved, resulting in a total of three factory resets during the update process.

I wanted to confirm if this is the intended behavior. On Android, the factory reset is performed only once, after all files have been written to the device.

Could you please clarify if this discrepancy is expected, or if any adjustments are necessary?

[korzonkiee]

Fixed in #523

[jimmyzumthurm]

Steps should be :

1. Factory defaults, device reboots
2. SDK connect to device, send all firmware images to device -> device auto reboots and upgrade itself, and boot
3. SDK connects to device when it come back alive -> factory defaults
4. Backup sync

It is expected to have 2 factory defaults command then, but having 1 for each file seems like a bug.

[korzonkiee]

Thanks for clarifying @jimmyzumthurm. With this PR: #523, iOS will behave exactly as you described. However, on Android currently implementation performs only one factory reset before writing the files: see here. I will open a PR soon that aligns that.

[korzonkiee]

Fixed in #525

[ClemDelb]

@korzonkiee Hi, can u please show your implementation to perform the firmware update ? i always get "Error during firmware update: serviceNotFound" when i try. Thank you by advance

[korzonkiee]

@korzonkiee Hi, can u please show your implementation to perform the firmware update ? i always get "Error during firmware update: serviceNotFound" when i try. Thank you by advance

Here is the Android & iOS implementation of the updateFirmware method from our own fork of Polar SDK.

[pth-pe-gh]

FLOW-61158

[ClemDelb]

@korzonkiee Is there a minimum firmware version for updating H10 sensors? And is there any configuration to be added in the SDK initialisation or any other prerequisites?
I always get ‘serviceNotFound’ with all my H10 when i tried to call the function.

Here is my implementation : #504

Thank you by advance !