HTC’s first devices to test the Android 4.0 Ice Cream Sandwich update were the European models of the Sensation lineup, but the first stream of updates was directed to the American HTC Vivid launched via AT&T. Later the ICS update reached the Sensation 4G (on May 16) and the Amaze 4G (on May 21). That’s all, no other HTC smartphone got the update. Moreover, HTC hadn’t provided any schedule table for us to know when the turn of the other phones will come. But yesterday the Taiwanese company published the timing list for the devices that will get the ICS update. According to it, all upgradable handsets will be running Android 4.0 by summer’s end.

HTC also notes that the handsets that sport RAM under 512MB won’t be updated. So the HTC Salsa, the HTC ChaCha, the HTC Wildfire S, the HTC Explorer and many others will stick to the version they are running currently. Moreover, HTC’s tablets in face of the HTC Flyer, the Evo View 4G, and the Jetstream will keep running Android 3.2 Honeycomb.

According to the table, most devices will be updated to Android 4.0 Ice Cream Sandwich in June or July. Those handsets are the HTC Desire S, the Evo 3D, the Evo Design 4G, the Incredible S, the Rezound, and the Rhyme, while the others (the HTC Desire HD and the HTC Thunderbolt) will take their portion in late July or August period.

As for this month, a couple of HTC smartphones are queued for getting ICS as well. Those lucky ones are the HTC Evo 4G+ and the HTC Velocity 4G.

Unfortunately, HTC has not yet determined whether the Droid Incredible 2 will be getting the update or not, but it says the final decision will be made by the end of August. I personally think this phone will be updated to ICS, too, because earlier this year HTC had such plans, so it’s possible in terms of hardware.