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document nrfutil python 3.9 workaround
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@ -223,6 +223,71 @@ $ nrfutil version
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nrfutil version 6.1.0
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```
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**NOTE** as of version 6.1.0 nrfutil indicates that it does "not" support Python 3.9 in its pip manifest. Due to this, the above `pip install` command will fail if you have a Python 3.9 interpreter installed. Here's how to work around the issue:
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*start of nrfutil python 3.9 workaround*
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``` console
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$ # these steps can also be done via a graphical interface
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$ # fetch the source code of version 6.1.0
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$ # or instead of curl you can enter the URL into your web browser
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$ curl -LO https://github.com/NordicSemiconductor/pc-nrfutil/archive/v6.1.zip
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$ # unzip the code
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$ unzip v6.1.zip
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$ # go into the new folder
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$ cd pc-nrfutil-6.1
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```
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Apply the following 2 patches (can also be done manually by editing these 2 files: `requirements.txt` and `setup.py`)
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``` diff
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--- a/requirements.txt 2021-01-05 10:50:12.611556607 +0100
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+++ b/requirements.txt 2021-01-05 10:50:09.718226891 +0100
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@@ -4,7 +4,7 @@
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ecdsa
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intelhex
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libusb1
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-pc_ble_driver_py >= 0.14.2
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+# pc_ble_driver_py >= 0.14.2
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piccata
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protobuf
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pyserial
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```
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``` diff
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--- a/setup.py 2021-01-05 10:49:56.014910707 +0100
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+++ b/setup.py 2021-01-05 10:50:26.004873175 +0100
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@@ -148,7 +148,7 @@
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'../libusb/x86/libusb-1.0.dll', '../libusb/x64/libusb-1.0.dll',
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'../libusb/x64/libusb-1.0.dylib', '../libusb/LICENSE']
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},
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- python_requires='>=3.6, <3.9',
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+ python_requires='>=3.6, <3.10',
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install_requires=reqs,
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zipfile=None,
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tests_require=[
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```
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``` console
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$ patch -p1 < requirements.patch
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$ patch -p1 < setup.patch
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```
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Then install the patched `nrfutil`
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``` console
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$ pip install .
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$ # verify installation
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$ nrfutil version
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nrfutil version 6.1.0
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```
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*end of nrfutil python 3.9 workaround*
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### `nrf-recover`
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Some nRF52840 devices, specially older revisions, may have parts of their Flash memory locked. To unlock the memory use the [`nrf-recover`](https://crates.io/crates/nrf-recover) tool.
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