Flashing from an SD Card - remay/tmf-hudl GitHub Wiki

Download the latest TMF Custom ROM from the Releases page of this repository. Extract the .img file from the download.

Ensure that your SD card has a high enough capacity to take the image (1.5GB free space is sufficient) and is formatted as FAT32. Copy the TMF Custom ROM .img file extracted in Step 1 to the root of the card and rename it update.img.

❗ Windows users - when renaming the file remember that by default Explorer hides known file extensions (and .img is one of the known extensions) so it is easy to name your file update.img.img rather than update.img. You can double check by going to the 'View' toolbar/ribbon and checking the name of the file while the 'File name extensions' checkbox is checked.

1. Turn off your Hudl, disconnect any USB cables and insert the SDHC card.
2. Boot your Hudl into 'Recovery' mode by holding down the Vol+ button while pressing the Power button for about 5 seconds. Let go of the power button, then let go of the Vol+ button. If you've done this right then you'll see the recovery menu.

3. Connect your Hudl to a power supply. You don't want to run out of power in the middle of flashing the new firmware.
4. Use the volume buttons to move up and down the list of options until the 'update rkimage from external storage' option is highlighted. Select this option by clicking the power button.

5. Wait for the new image to be flashed. There are 2 possible sets of screens that may be displayed during the flashing process (depending on the version of the firmware currently on your device) but either way should end up with a working device with no further actions:
   • Path 1: You'll see a number of lines of yellow text appear on the screen telling you about the progress. When complete the device will reboot.

• Path 2: You'll see a yellow line or 2 appear quickly and the device will reboot (screen will go blank). Wait, and it will re-boot to an animated Android logo and the text 'Installing System Update...'. At this point if you want to see the progress (as in Path 1), then hold the power button while you click the volume+ button, but you don't need to do this. When complete the device will reboot.

6. Your Hudl will show you the 'Powered by Android' and 'Hudl' boot screens and take you to the desktop.

1. The TMF ROM still contains a small amount of residual Tesco Customisations which will appear only during the initial setup: Step through the 3 screens answering 'No' to sharing with a child and 'OK' to the information.
2. Launch the Settings app from the App Drawer and:
   • Turn on/Set up a Wifi/internet connection
   • Check the 'Location access' settings, and agree to the privacy notice if needed.
   • Add a Google Account to the device (needed to allow the Play Store to connect and update)
3. Give the device a few minutes for the Play Store to update, and once updated launch it. You can tell the update has happened as the Play Store Icon changes (from old on the left below, to new on the right). If the Play Store doesn't appear to be updating, then launch it and wait again.

5. You should now get a notification to "Update Google Play Services". Click on the notification and wait for the 'Google Play Services' page to open in the Play Store. Click 'Update' on that page and allow the update to download and install. You may also get a notification 'Google+ update required' - you can ignore this (or click it to dismiss it).

6. The Play Store App should now automatically update all the other apps - you can check on progress in the 'My apps & games' section of the Play Store. You will be notified for any apps for which you need to approve new permissions.
7. If you continue to have problems with the Play Store then try following these steps. I've also been recommended the Play Services Info app to check the status and apply updates to Play Services (but haven't tried it myself).

Congratulations, you have turned an expensive paperweight back into a functioning Android Tablet.