In an attempt to close some tabs in my browser and transfer some notes to blog form, another “short takes” post…
Deleting paired Bluetooth devices from a Volkswagen MFD
The advice is for a 2012 Passatt but it worked for my Tiguan and probably for a Golf, etc. too (there’s a maximum of 4 connected devices – although only one can be active at any one time):
“Go to the Phone on the center information panel
Go to Users and you will the the phone names
Scroll to the phone you want to remove
Push the OK button on the steering wheel
You will be offered some options, scroll down to Delete and hit OK”
Incidentally, Know Your VW is a useful site (although it is intended for the North American market).
Patience required inserting a Micro SD card in a Tesco Hudl
After buying my Tesco Hudl a few weeks ago, I decided to get a memory card to expand the on board capacity (e.g. cary more music/video with me). Of course, Tesco is the last place I want to buy accessories like that and I picked up twice the capacity for half the price (or something like that) at MyMemory.co.uk.
I’ve also got a few open tabs in my browser with cycling-related bits and pieces I mean to blog about… so here’s a special cycling-themed “short takes” blog post…
Editing GPX files
Every now and again, it’s bound to happen… you forget to stop the cycle computer/app on the smartphone and the resulting GPS eXchange format (GPX) file has a block in the middle where you were waiting for your mates to arrive/sitting in a coffee shop/whatever. Then there are times when the GPS goes haywire and thinks you did 87.8kph down a hill, or when it just straight-lines a corner. In those instances, you might want to edit the file.
We’re off to Centre Parcs later this year, and I needed to provide details of our bikes (useful for insurance purposes too). Once again, I was searching for the serial number for my mountain bike and, once again, it was eluding me so, whilst it’s unlikely to apply to everyone who reads this blog, here’s the link to Trek’s advice on where to find your bike’s serial number.
Woah… where did the last three months go? It’s Milton Keynes Geek Night (@MKGeekNight) again tomorrow and I haven’t blogged about the last one yet (for that matter I can’t find my notes – in Evernote, OneNote, Keep, or anywhere else). It’s a good job I don’t rely on this blogging lark for a living…
Once or twice a month, I travel to Manchester for work. I usually get around by tram (Metrolink) when I’m there – there’s a stop close to our office and its convenient for travel to/from my hotel and the railway station.
Manchester’s tram system is being upgraded at the moment and, last week, I was amused by posters asking passengers to “bear with us whilst we make Victoria posh”:
As much as my southern sensibilities (actually, I’m from the East Midlands) cringe at the idea of “making something posh”, in fairness to Metrolink, they do have a great series of communications around their project (and whoever is responsible clearly has a sense of humour). One of my favourites is reproduced below:
“Dear [customers] It can be fast. It can be slow. You can measure it in feet, inches, weeks, months and years. And, occasionally, in leaps and bounds. It’s going to take a little time. And a lot of hard work. But, rest assured, it is moving forwards. Creating something better for us all. So thank you for your patience. And while our network is undergoing this transformation, we’ll keep you up-to-date with information.”
I like that poem, and I started to think about other applications for its use… something to consider for my next IT transformation project, perhaps – because good communications are vital to project success (and so many updates that I see are just dull walls of words).
After a couple of days I knew I’d made the right decision – I’ve been disappointed with Android on my phone but on a tablet it’s really usable (the Hudl uses Android 4.2.2 JellyBean) – and Tesco have provided an almost stock distribution. Even so, there are some “customisations” – a few apps and widgets to try and encourage more Tesco shopping, and a [T] launcher button in the bottom-left corner of the screen. The apps and widgets are easy enough to move out of sight, but I really wanted to lose the Tesco Launcher [T]…
Rooting the tablet
Step one is to “root” the operating system – i.e. to give myself full access to all of the files and folders on the device. Paul O’Brien (@paulobrien) has a great post on his MoDaCo forum on rooting the Hudl.
After scratching my head for a few minutes I realised I also needed to chmod 755 flashroot.hudl.linux.sh to make it executable. I tried the script again but this time the response was cannot execute binary file – it seems that the version of rkflashtool.linux included in the ROM download was for 64-bit Linux and my netbook only has a 32-bit installation.
Being a good geek, I have a pile of media waiting to be “sorted out” including some Linux live CDs, so I fired that up on another PC and this time managed to flash the Hudl (I used an Ubuntu 13.10 live CD – CentOS 5.5 refused to play). If you’re having trouble getting the device into the right state, then check out Matt Foot (aka @glossywhite)’s advice on MoDaCo:
Turn Hudl off.
Connect via USB to PC.
Hold down Volume Up (+), push the reset button for one sec (recessed hole with gold dot in it) and continue holding the Volume Up button.
To check that this has put the Hudl in flashing mode, and to verify that it isn’t merely in charging mode, release Volume Up after around 10 seconds and tap once on the power button; if you see a battery, it has failed, so try again.
I found that the Live CD didn’t want to execute anything from a USB stick or local hard disk in the PC (Windows file systems), so I copied the following files to /home/ubuntu:
The device then restarted in charging mode, and I powered it up as usual. Paul’s instructions say to install SuperSU from the Google Play Store but it seemed to be installed already; however I did update it.
Using your method of choice, transfer the file to your device – I used Dropbox, and then selected the option to Export, then Save to SD card (Internal Storage) but others have suggested Bluetooth, or ADB.
Connect using your SSH client of choice (I used PuTTY) over a Wi-Fi connection to the Hudl.
Login as root, with password abc123
Issue the following commands: su mount -o remount,rw /system cp /system/app/SystemUI.apk SystemUI.mybackup.apk (I didn’t do this but it would have been sensible…) cp /storage/emulated/legacy/SystemUI.apk /system/app/SystemUI.apk
After this, the Hudl should reboot.
Following restart, the Tesco button should be gone – use Root Uninstaller to disable (not remove) the Hudl Updates package.