Update 10.3 keeps failing - no memory space?

Hi, I saw that a couple of people had similar problems, but I can't seem to resolve my problem with the solutions provided... I have a total of 4GB free storage on my Q5, I only have whatsapp installed as the only app. All my files are already on my media card. The software updates keeps telling me I need an additional 243MB to be able to download OS 10.3. But I don't know where to get it from? Even if I delete whatsapp, I tried that before, it only frees about 30MB. I don't know what else to delete, cookies etc., all gone. I also tried using BlackBerry link, it keeps failing at around 20%... :(

It will keep doing that as the installation size is bigger than the file size.

You need to wipe your phone and start from scratch and if you're doing that, it's better to go the autoloader way than OTA. I'll report back with the process and necessary links.

Edit:
1. Download the file from here:

https://mega.co.nz/#!wxhBSAbS!-QXrrg...E3X5DDMfAlESG4

2. Back-up your device through BlackBerry Link

3. Extract the file from the zip file you downloaded and run it. Don't disconnect your phone until that window closes by itself.

4. Restore only media and notes (and contacts if it is not synced to a mail service) through selective restore.

5. Set-up everything else from scratch 🐸

Autoloader is preferred for sure, but you can try the OTA update by attaching to Link first and letting Link do the update. It takes only half the space on your device when you do it this way.

Z30STA100-5/10.3.2.XXX