DFU progress stuck on iOS 17.0

[LucaDonetti]

DFU Bootloader version (please complete the following information):

SDK version: NRF5, v16

• Bonding used: yes
• Library version: [4.13.0]

Device information (please complete the following information):

Device: iPhone XS, iPhone 14 Pro, iPad mini 5th Generation

• OS: iOS 17.0

Describe the bug:
DFU can be initiated without any problem, however the progress stuck at random progress. Only happens on iOS 17.0. Everything is working fine for iOS 16 and below.
Suspect that's a bug from Apple side on iOS 17.0, but might as well post here.
The Bug is very similar to #510.
I try to set "packetReceiptNotificationParameter" to 0(like you explain on this report #510), but is not work.

Log:

"[BSDfuOta] [Nordic-Service] State changed: Connecting"
"[BSDfuOta] [Nordic-Service] State changed: Starting"
"[BSDfuOta] [Nordic-Service] State changed: Uploading"
"[BSDfuOta] [Nordic-Progress] Parts: 1 / 1 - Progress: 0 % - Speed: 0.0 - Avg speed: 0.0"
"[BSDfuOta] [Nordic-Progress] Parts: 1 / 1 - Progress: 1 % - Speed: 6958.366797646767 - Avg speed: 6958.366797646767"
"[BSDfuOta] [Nordic-Progress] Parts: 1 / 1 - Progress: 2 % - Speed: 4509.398199166779 - Avg speed: 5473.2088788075325"
"[BSDfuOta] [Nordic-Progress] Parts: 1 / 1 - Progress: 3 % - Speed: 4081.0547312089516 - Avg speed: 4914.6331591716735"
"[BSDfuOta] [Nordic-Progress] Parts: 1 / 1 - Progress: 4 % - Speed: 6529.697413215871 - Avg speed: 5236.988559958262"
"[BSDfuOta] [Nordic-Progress] Parts: 1 / 1 - Progress: 5 % - Speed: 4543.566837350083 - Avg speed: 5081.746769250404"
"[BSDfuOta] [Nordic-Progress] Parts: 1 / 1 - Progress: 6 % - Speed: 4935.882293024704 - Avg speed: 5056.822899650668"
"[BSDfuOta] [Nordic-Progress] Parts: 1 / 1 - Progress: 7 % - Speed: 6722.5135078699495 - Avg speed: 5241.577580605801"
"[BSDfuOta] [Nordic-Progress] Parts: 1 / 1 - Progress: 8 % - Speed: 4308.121523592575 - Avg speed: 5103.192135303826"
"[BSDfuOta] [Nordic-Progress] Parts: 1 / 1 - Progress: 9 % - Speed: 4352.404008856006 - Avg speed: 5007.117919232876"
"[BSDfuOta] [Nordic-Progress] Parts: 1 / 1 - Progress: 10 % - Speed: 5960.438633141871 - Avg speed: 5088.16772177767"
"[BSDfuOta] [Nordic-Progress] Parts: 1 / 1 - Progress: 11 % - Speed: 4150.61427948979 - Avg speed: 4985.644796943376"
"[BSDfuOta] [Nordic-Progress] Parts: 1 / 1 - Progress: 12 % - Speed: 3638.132737776432 - Avg speed: 4836.181889448011"
"[BSDfuOta] [Nordic-Progress] Parts: 1 / 1 - Progress: 13 % - Speed: 3596.889887365924 - Avg speed: 4711.958910960532"
"[BSDfuOta] [Nordic-Progress] Parts: 1 / 1 - Progress: 14 % - Speed: 6161.176733136156 - Avg speed: 4792.716572083866"
"[BSDfuOta] [Nordic-Progress] Parts: 1 / 1 - Progress: 15 % - Speed: 3784.7014997663578 - Avg speed: 4708.986727917955"
"[BSDfuOta] [Nordic-Progress] Parts: 1 / 1 - Progress: 16 % - Speed: 3969.114815418525 - Avg speed: 4655.038745743609"
"[BSDfuOta] [Nordic-Progress] Parts: 1 / 1 - Progress: 17 % - Speed: 7788.733878047134 - Avg speed: 4768.222914186186"
"[BSDfuOta] [Nordic-Progress] Parts: 1 / 1 - Progress: 18 % - Speed: 4505.52774625675 - Avg speed: 4752.804971497896"
"[BSDfuOta] [Nordic-Progress] Parts: 1 / 1 - Progress: 19 % - Speed: 4382.366392777505 - Avg speed: 4731.863693777893"
"[BSDfuOta] [Nordic-Progress] Parts: 1 / 1 - Progress: 20 % - Speed: 7678.367097694481 - Avg speed: 4824.7149159199425"
"[BSDfuOta] [Nordic-Progress] Parts: 1 / 1 - Progress: 21 % - Speed: 4046.672708164637 - Avg speed: 4780.8759847796455"
"[BSDfuOta] [Nordic-Progress] Parts: 1 / 1 - Progress: 22 % - Speed: 4494.97636887608 - Avg speed: 4767.0736768621655"
"[BSDfuOta] [Nordic-Progress] Parts: 1 / 1 - Progress: 23 % - Speed: 3657.189160188722 - Avg speed: 4705.317471268779"
"[BSDfuOta] [Nordic-Progress] Parts: 1 / 1 - Progress: 24 % - Speed: 8387.021503974249 - Avg speed: 4793.250629186246"
"[BSDfuOta] [Nordic-Progress] Parts: 1 / 1 - Progress: 25 % - Speed: 4135.09154503794 - Avg speed: 4762.881458766034"
"[BSDfuOta] [Nordic-Progress] Parts: 1 / 1 - Progress: 26 % - Speed: 3797.4188327619404 - Avg speed: 4717.000045096783"
"[BSDfuOta] [Nordic-Progress] Parts: 1 / 1 - Progress: 27 % - Speed: 8023.633665028591 - Avg speed: 4790.337201423899"
"[BSDfuOta] [Nordic-Service] State changed: Connecting"
"[BSDfuOta] [Nordic-Service] State changed: Starting"
"[BSDfuOta] [Nordic-Service] Error 305: Writing to characteristic failed"

[zwift-aebling]

Can confirm we are seeing similar behaviour here, which was not reproducible until we updated the device to iOS 17.

[LucaDonetti]

Any solutions? Because some clients that update to iOS 17 can't update to the new firmware

[JtheSaw]

Some of my clients are experiencing the same problem but I can't reproduce it with my test devices. Do you have a way to reliably force the problem to occur?

[zwift-aebling]

I was able to reproduce using iPhone 13 Pro/iOS 17 and flashing old FW to an NRF52DK, then doing DFU.

EDIT: the DFU package used contained app + sd + bl.

[philips77]

Hello, I'll try to look into this issue this week. I need to finish my current task before. Sorry that I keep you waiting.

[jpszczerba]

Hey, do you have any update regarding this?

[philips77]

I'm resuming work on this project just now.

[jpszczerba]

Okay, thank you!

[philips77]

In the project there's Example folder, which has a set of automated tests for DFU.
First, one has to flash nRF51, nRF52832 or nRF52840 DK with a hex file that can be found in this folder and when the app is started and DFU device is selected, the app will perform number of updates from going through different SDKs forward (nRF52) or backwards (nRF51).

I started the test on an iPhone Xs (iOS 17.0.3) and all tests completed with success.
Let me test different phones and iOS versions.

[Yramani1998]

Still facing the same issue on iphone 12 (ios 17.0.0) . Do we have any updates ?

[brix-nobo]

We're still experiencing this issue with iOS 18.3.2 (iPhone 11, and iPhone 13).
Are there any updates about this?