The current problem: /e/ OS build for a5y17lte works with dev (7-nougat). Since May 2018 the SM-A520F receives StockROM Android 8.0.0 updates. The current build Android 8.0.0 A520FXXUCCSK1 is from November 2019.
Upgrades & Updatesare good thing in itself, but - Samsung has massively protected the bootloader against changes. That goes so far that after the update due to updates of the security guidelines, the old software can no longer be used (see also Biildanimation Figure #5).
● The security of your device has been improved.
●● After the update, you will no longer be able to use the old software due to security policy updates.
I know the theoretical solution (StockROM Android 8.0.0 Firmware Downgrad to Android 7.0 with its Bootloader, Modem/Baseband update, TWRP Recorvery and /e/ OS install, but is the effort worth the risk? Isn’t it better to wait until the maintainers of the /e/OS Build Team release an upgrade to /e/OS 8-Oero or even /e/OS e-9-Pie?
Hi @runarriot what you’re revealing here is already known to me. We don’t want LineageOS or LineageOS-for-mircoG and certainly no apps from the G°° Play Store, we want /e/ OS. /e/ OS 9-Pie will soon be available for the “a5y17lte”. I’m convinced of that.
The technical process of changing the operating system from StockROM 8.0.0 8 Oereo to /e/ OS e-0.7-n (7-Nougat) would appeal to me to confirm my theoretical knowledge. However, since the phone is not my property, I will not make an enemy of my friend.
The StockROM 8.0.0 with security lease 01 Nov. 2019 is as far as possible free of all pre-installed ballast. When the /e/ OS 9-Pie upgrade is released in the new year, the phone will be equipped with it. We can still wait that long.
I could not resist and curiosity & interest in the matter were greater. Although I didn’t install the official /e/ for a5y17lte dev (nougat) build, I installed two versions of different unofficial 8-Oreo and a 9-Pie build. The final result can be found → here.
Well, only I mentioned that /e/ OS version e-0.7-n(nougat)-2020031745615-dev-a5y17lte coming from StockROM Oreo 8.0.0 February 2020 Security Update does not work on my “a5y17lte”. All the more the announced upgrade /e/ for a5y17lte dev (pie) is expected.
And would you by any chance know if it is there in the lineage 16.0 ROM for this device. Checking as it would be weird if it is missing here as we do not change the build script for individual devices.
So you’ve tried install pie from initial /e/ nougat 0.7 or stock ROM ?
Which were your driver MoDem version (base band version) on nougat before the update, just to see if I’ve the same one or similar ? Parameters/about phone/base band version near the build number in nougat
A good starting point for the right baseband/modem firmware is the region you live in. If I were you, I would upgrade to e-0.7-pie first. If everything fits, I don’t think it is absolutely necessary to install the latest bootloader/baseband firmware of Android Oreo 8.0.0. But it wouldn’t do any harm at all, except - you would then want to go back to StockROM 7.0 nougat. This is no longer possible, because Samsung wants it so.
StockROM Android 6.01 or 7.0 have never been installed on my “a5y17lte” - only StockROM Android 8.0.0 and LOS 15.1 or Lineage-16.0-for-microG. Please also read above again.
To check the /e/ test build e-0.7-p-2020031244891-test-a5y17lte, I flashed the latest StockROM Android 8.0.0 February 2020 update (MODEM/CP Version Region DBT - Germany).
Yes, why wouldn’t I? After inserting the SIM card and rebooting the system, the mobile network was immediately recognized correctly and the access points (APNs) for Internet and phone were automatically set correctly. Accordingly, telephoning with 9-pie was no problem.
Next I will check all Bluetooth connections thoroughly.
Recently flashed this device for elderly father. (Made him use /e/ ) His device was still on MM 6.0.1. So did as @archje did and flashed latest stock firmware available (Oreo) with odin. Then proceeded to flash /e/. The whole process with heimdall, TWRP all went super smooth and without problem (using ubuntu). Using the latest /e/ pie build ‘e-0.7-p-2020033047438-dev-a5y17lte’ and so far so good, everything works great.
/e/ for a5y17lte dev (pie) e-0.8-p-2020041649926- now with Android security patch level April 5, 2020. The recently integrated Pdf Viewer Plus is suddenly no longer pre-installed
The Pdf Viewer Plus icon is no longer on the home screen.