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Manual restore of Android databases fails after upgrade to OpenEve 2.3.7
As described in my earlier post
, it is wise to create regular backups of your apps and data to SD card using
or the local Android terminal:
busybox tar cvf /mnt/sdcard/Backup/Full_`busybox date +%Y%m%d`.tar /system /data
How To upgrade a LG GW620 to Android 2.3.4
The OpenEtna community provides firmware updates for the GW620 phone by LG, which originally came with Android 1.5.
After using the Korean Android 2.2 (Froyo) update provided by LG for a while, I then took the leap to OpenEVE Android 2.3 (Gingerbread) for usability reasons
(2.2 was pretty laggy sometimes).
How to dual-boot Windows physically and virtually
While this is no longer possible with Windows Activation Technologies in Win 7, Windows XP allows using Hardware Profiles for a shared installation that can be run either physically or virtually (e.g. using the KVM virtualization stack built into recent Linux kernels, which is a lot more convenient than VMWare Player with its kernel module dependencies, at the price of 3D graphics acceleration).
The recommended sequence for such a setup:
- Install Windows XP physically (where applicable, using the IDE mode of your SATA host controller)
- Create a second Hardware Profile for virtualization, reboot using that new Hardware Profile and let hardware detection run its course
- Swap the hard disk controller drivers to VirtIO (for KVM) and AHCI (if you have a SATA host controller, that is)
How to repair an ext3 filesystem after mkdosfs format
After shrinking a large ext3
partition using gparted
to make space for an additional partition, I did not take sufficient care to notice the leading partition I newly created with cfdisk
subsequently was denoted as sdc2
instead of sdc1
, as one might expect.
Thus woe ensued when I issued a mkdosfs -F 32 /dev/sdc1
command without a closer look at the new partition numbering.
So the interesting question now was, what can be salvaged from an ext3 filesystem with overwritten superblock (as well as a few of the inodes)?
Helpful software for Series60 3rd Edition mobile phones
Smartphones have become rather powerful little devices
you always have on your person, whatever the time or situation.
In case of devices running the Symbian Series60
operating system you have a large choice of freely available native software helpful in most diverse situations. And this is on top of the usual Java Micro Edition applications you are limited to on more proprietary platforms like Nokia's entry line Series40
, many Sony-Ericsson phones based on their Java Platform
messaging devices. Naturally, with the advent of the iPhone, all manufacturers are in the process of redefining their product line in that application platform respect.
Adding certificates to a Nokia E-Series phone
It's rather annoying to have those popups warning me about untrusted SSL certificates when downloading mail securely using IMAPS.
So here's how to add X509 certificates to a Nokia S60 certificate store.
E70 Firmware Update
The Nokia Software Update
to 3.0633.09.04 fried my E70 - probably an issue with german product codes (in my case 0526204): I ran into "software update failed" at 100% on the completion gauge with 2 Nokia logos and "test mode" on the E70 screen. Battery removal only causes a "System Error" after the white bootup screen (before even asking for the PIN, no Nokia logo during startup).
According to the local Service Point I took the phone to after that, this has happened others as well...
The quest for a free password manager on my new E70
While I am rather happy with the E70 smartphone so far, one thing I sorely miss, is a password manager on the device.
After some research I undertook the endeavour to install kedpm
on my E70 (with PyS60
), as I require a free and secure password manager that is available on both, handset and PC (jfreesafe
is lacking categories and there is no J2SE version, it seems)...
A useful application of mobile phone cameras
Snapping photos of business cards was one of the reasons I chose a business phone with cam
- even though OCR
has to be done off-board, sadly. Now, a 2D Barcode Reader would be a real treat, provided more and more business cards utilize QRcodes
in the near future! A sensible business feature for the top of the line Nokia business handset, I'd say...
How to boot a real harddisk in VMWare
The knack is to install the VMWare SCSI driver (included with VMWare Tools) before
booting the SATA or PATA harddisk and then to configure it in the VMX config file as follows:
scsi0:0.present = "TRUE"
scsi0:0.fileName = "win_raw.vmdk"
scsi0:0.deviceType = "rawDisk"
scsi0.present = "TRUE"
scsi0.virtualDev = "buslogic"
Introducing the new Nokia E70 smartphone
Switched from my OPIE palmtop
, that served me well for over two years to a Nokia Smartphone based on the Symbian Series60 platform. Mainly I wanted to consolidate my gadgetry into a more integrated device (in conjunction with a new mobile plan).
Installing Familiar and OPIE on an iPAQ 3760 using a USB cable
Some notes on trouble with transforming a PocketPC handheld to a Linux gadget using USB connectivity to a Debian
GNU/Linux box. For details familiarize ;) yourself with the swell installation documentation
for Familiar on handhelds.org first. By the way, take your time and have a look at GPE
as well; for me the more integrated approach and the synergies with the Zaurus
platform were determinant for choosing Opie
(I prefer Gnome/GTK on the desktop, on a handheld I prefer Qt - that's fair, isn't it ?).
Some really old content of mine...
Photos from Great Britain
Master Thesis Imperial College London
Diploma Thesis Freiburg
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