Category: [English]

  • How to disable USB mode-switching on Huawei 3G sticks?

    Huawei 3G USB sticks ("dongles") support a special command to control the mode how they will appear to a host computer. This allows to switch off the flipflop USB capability, also called USB modeswitching. USB modeswitching means that these and many other USB 3G sticks at first only provide a virtual CD-ROM drive to the […]

  • How to install a 3G stick on a Flytouch 10 tablet?

    These instructions were tested on a Flytouch 10 (more specs here), also known as Flytouch X, Superpad 10, Superpad X. The model naming of this Shenzai stuff is a mess, so be sure to check the linked specs and photos to make sure it's your device. Configuration For a compatible 3G stick to work, you […]

  • What is a recommendable free web hosting control panel?

    Requirements I got quite annoyed by the vendor lock-in of Plesk Panel, so now I'm looking for a free and open alternative. The requirements were quite straight-forward: good software quality free and open source software running on a Linux server multi-domain capability multi-client capability FTP, webserver and e-mail configuration support per-client SSH access Alternatives List […]

  • How to fix when an Android phone stopped showing the “mass storage” connection option?

    Just rebooting the phone should fix this if this option is at least usually shown when connecting the phone by USB cable to a computer. It does not help to use the feature in settings to "Safely Remove SD Card" and then drawing the SD card out and plugging it in again – the SD […]

  • How to fix Magento cron job crashes with “Allowed memory size exhausted at […] Pdo.php on line 290”?

    Symptoms The exact error when executing the cron job manually (/usr/bin/php -f /var/www/vhosts/ was: PHP Fatal error:  Allowed memory size of 536870912 bytes exhausted (tried to allocate 7 bytes) in /var/www/vhosts/ on line 290 Solution This error can happen if Magento's cron_schedule table has too many records, coming from the log entries of past cron runs. […]

  • How to dimension a stand-alone photovoltaics installation?

    This applies for example when you want to add a photovoltaics installation to your campervan, expedition vehicle, garden hut, off-grid house or similar. For having enough electricity year-round from photovoltaics alone, battery size and module size have to be properly dimensioned. The best tool I found for this is the European Commission JRC's PV potential […]

  • How to migrate e-mails from KMail to Thunderbird?

    Instructions These are instructions how to import messages held in KMail 2 into Thunderbird. Versions were KMail 4.10.5 and Thunderbird 17.0.8, but should not matter for this to work. Install ImportExportTools in Thunderbird. In Thunderbird, create a folder into which you want your e-mails imported. This can be in "Local Folders", which is recommended, but […]