Lenovo K900 review with problems...! Please help...!

Question

Hi guys.. I am Chethan
History:-
I used to have a Samsung galaxy note1(gt n7000) for about 18 Months
A good phone but a sluggish one.. Especially with the android 4.1.2..
So it was time for an upgrade...
I dint find a elegant phone than the LENOVO K900 in the 5+" segment.. note3 feels a little dull in front OF K900(MY OPINION)
At last got the k900
THE USER INTERFACE(Lenovo launcher)
minor comparison to the touchWIZ(NOTE1)
CONS
it was hard.. But fast
lot of options missed out..(clammed to be heavily customized my lenovo.. but why..?)
very few widgets.. Difficult to add them too.. :-(
no widget for FM Radio
NO task manager
no clipboard and swipe option in the keyboard..
cudn't change system font.
Limitation on number of widgets per page
only 1 theam and dint let me add any...
About 9.5GB out of 16GB for the user is less but manageable.. (come on its not a PC)
Battery is a little weird.. It not consistent.. may be an issue with the program
PROS
Display is awesome
Lock screen is better(I liked it)
2GB of ram a delight for multitasking.. i don't know about high end games as i m not interested
Page transition Effects(lot of them) can be changed which looks gr8..
Camera is grate (but 13MP cam heats up and doesn't auto focus after 50 continuous shots)
the front facing is also decent for a video chat
Music through earphones and the phone speaker is good
web pages lodes faster even with multiple tabs open..
an app called lenovo power.. a very good one theoretically..! but doesn't really atand up to what it shows..
Issues i could fix (i am a mechanical engineer not a software guy.. but managed a little by digging around)
1.  TEXTING(very important stuff)
-swipe option from touchpal X(an app)
2. User interface(Partly fixed for my requirement)
-Nova launcher(its highly customizable)
it let me change and customize my user interface..
ISSUES I HAVE FOR WHICH I NEED HELP
1. the region around the camera(13mp shouter) heats with a continuous use for about 5min.. and keeps on increasing further.... it affects the camera.. I.e.., the camera's auto focus looses focus(by this time the surrounding region is very hot to hold)..
2. the battery is not consistent..
3.there is no power saving mode to reduce the power consumption when idel.. 
Is there a way to underclock the processor to reduce power consumtion without rooting..?

Answer 1

Am into the 4th month of using K900.
Further to the battery problems that everyone is talking of there is a process that needs to be followed with this phone.
Plus contrary to popular beleif, there IS a difference between lithium-ion & lithium-polymer batteries. Marry it to a power intensive Intel processor along with 2GB of RAM & you have yourself a battery guzzler.
Steps to improve battery life
1. Firstlly, the 5.2v charger provided with your K900 better be your best friend. I messed my battery up for a week by using my wife's Samsung Galaxy S4 charger (5.1v charger - close enough, right? WRONG!!!). Battery began portraying commonly mentioned issues of complete battery drain within 7 - 10 hours, phone switching off @ 15% battery indication & after a few more (incorrect) charging @ 22%, etc.
2. Treat this phone like a laptop. Laptop batteries need priming. The better you prime, the more you would be increasing the battery life (Both for per charge & number of successful charges). So what is priming? Simply follow diligently the instructions that the "Lenovo Power" app mentions under the "Charging" tab. Please ensure 100% charging at every charging cycle as much as you can (However, 100% charging on every alternate charging cycle is a MUST). FYI, Quick Charge feature is useless. It'll only cause dissonance. Also, let the battery discharge to 15% or so & then charge it back to 100%. Furthermore, it would be beneficial for the battery if you would leave the phone connected to the charger upto 0.5 - 1.0 hour after reaching the 100% mark.
3. Some apps will EAT THROUGH your battery & heat the hell out of your phone if used continuously for long durations such as Candy Crush, CSR Racing, Fruit Ninja, etc. So don't blame the phone or battery, it's just the way the app is built.
4. This is a 1080p 5.5-inch super LCD screen. It will consume battery & significant amounts of it too. Also, your Accelerometer, GPS, etc. sensors also consume a lot of battery. So the next time you have your "Auto Rotate" feature on, it will consume your battery 15% - 20% faster than when it is disabled.
However, there are some glaring troubles that Lenovo seems to be facing with product development. Straight-up, the 16GB non-expandable internal storage is a gross mistake. Fine, so you came up with a 32GB version too in late November. Where is this replacement option for existing users of the 16GB version? I don't want to use the cluncky OTG feature!!
The battery capacity is definitely lower than what it should have been. Lithium-Polymers cannot hold charge for extended periods of time, however are great for operating in widely varying temperatures and for the flexible form-factors. My 1 day old Lenovo P780 (for Work) has a 4,000 mAh Lithium-Polymer battery with a smaller & lower resolution screen, obviously it will last 3 days with heavy usage. Did you guys mean to place THIS battery in the K900 originally & realized that the product design would not be ready for the mass marketing in time, at your newly acquired Lithium-Polymer battery supplier? Lenovo.....I seriously would not have minded a slightly thicker K900 with more battery say 3,500 mAh or even 4,000 mAh.
Plus, the latter versions of my second phone (i.e. the 8GB version of P780) have a lot of things ironed out in the Android 4.2.1 version that it is running. Would you beleive it, the phone actually offers me a bunch of themes to choose from, Auto Rotate feature for a few native apps too, interface problems have been dissipated, plus there is BATTERY CALIBRATION option in it (How cool !!).
Lenovo really really needs to give us everything that they have developed for their latest phones in their flagship K900. Dell makes Intel phones, so does Asus & now Acer has also ventured into it. Everyone faces issues because of the seamless integration of software & the alien Intel hardware required, but not available (& therefore needs to be developed, tested, tested & tested by these computer giants). You guys have the infrastructure & ppl to do it!! So do it!! Blue Ocean Strategy ppl......c'mon !!!
Also, Lenovo needs to do some buyer research. Most of the loyal users of K900 (Worldwide) are previous Intel processor users (Phonewise). We Intel-users have a habit of keeping these phones for a good 2 - 3 years. With this kind of a battery & the tedious process of taking care of it, my dreams of long & solid use have gone POOF!! But you still have to make good the money you have spent on this phone, right? So therefore Im trying to look at the positives..............MOSTLY!!
I personally don't care about upgraded OS version numbers. I don't mind everyone running the 4.4 Kit Kat, while I'm still running the MOST STABLE & the FASTEST available version of 4.2.1 in the entire market.
Last words........Lenovo......A sincere request.......Please give me something I can be proud of.......Usage-wise & not just Looks-wise.
Thanks & Regards,
A Concerned Loyalist