Then I have one more SIM card from O2, where I have a 67% discount on Mobile Internet M with a FUP of 1GB. The problem with this SIM is that you can’t make calls from it, you can only send SMS messages. I pay 99 CZK a month for it and the discount is valid until January 2015. After that I would pay the standard price of 303 CZK/month. I was also considering the “CD Bonus” plans from Vodafone (i.e. plans that can only be registered on an In Karta prepaid card) – then I would have calls for 1.5125 CZK and SMS for 0.3 CZK until I used up the 30 CZK I would have to pay every month.
Beyond the 30 CZK it would cost four times as much, i.e. 6.05 CZK per minute of calls and 1.2 CZK per SMS. So at most I could talk for up to 20 minutes or send up to 100 texts. If I stayed within the limit, it would cost me, including internet with a FUP of 150MB, 163 CZK a month. I’m still mulling it over and I think I’ll get that In Karta plan again, but I can’t make up my mind. Oskarta also looks nice. Calls to all networks for a flat 2 CZK per minute, SMS for 1.5 CZK and internet for 30 days for 149 CZK with a FUP of 200MB.
And since I tend to call and text less rather than more, and I could also live without the FUP of an extra 50 MB, what I like most about the In Karta plan is the SMS price, which is lower by 1.2 CZK in the case of “credit”, or by 0.3 CZK once the credit is used up. The second option would be to get the more expensive voice/SMS plan for 89 CZK with 353 CZK of credit instead of 120 CZK and more expensive mobile internet (specifically probably Full Mobile Internet for 263 CZK with a FUP of 600MB, and put a SIM with the same number into both phones (a so-called Twin SIM), so I would have just one number but a shared FUP, and once I exceed it, my speed drops to 16-20kb/s.
And that makes me a bit worried on my Lumia 520 – on it I hardly used the internet through apps at all that month, plus for about half the month I had the battery saver permanently on, where apps only run when I start them and only one can run at a time, and on top of that email doesn’t sync automatically. And the result was this: in 29 days the Lumia used almost 300MB of data:

But there is also a second option in play, and that is, as I wrote, the Twin SIM. But definitely not now, because on the Tesco Mobile card I have credit that would expire. So the first option stands. For SMS, a SIM card from Vodafone on In Karta, and for calls too until I use up the 120 CZK limit; for calls to Tesco Mobile, the Christmas gift package of 100 minutes that I get with every top-up, which also covers calls over the 120 CZK limit at Vodafone.
You can see 3 pictures of the Oskarta here: 👻 Oskarta pictures on SkyDrive – the link is deader than Flash Player.
Upgrading the Xperia from Android 2.3.4 to 4.0.4
I shouldn’t have done this. I resisted it for a long time, but now I decided to give it a try. The biggest argument FOR was somewhat more free memory for apps on the phone, which is currently a ridiculous 420MB.
I installed updates for all the programs that came with the phone and couldn’t be deleted, plus a few of my own programs. Everything that could be moved to the SD card I moved, and now 307MB is used and 113MB is free. The worst part is that with 40-50MB free the phone starts telling me to delete some apps. But now the phone is buggy and very slow; every activity (that is one screen – those who know Android programming will understand) takes at least 10s to display. The battery also drains 2x faster than on Android 2.3.4.
And that’s with everything in factory state. The RAM isn’t full either, since 189MB is used and 152MB is free.
Photos from the upgrade to Android 4.0.4 are on 👻 Upgrade photos on SkyDrive – the link is deader than Flash Player.
