![]() | #16261 | |
Team-BHP Support ![]() ![]() | ![]() Quote:
I don't think chargers "restrict" to standards. That is why "USB" chargers of tablets etc., have higher current ratings than 500mA EDIT: I found that the Phone detects a USB host ID. So when its connected to your laptop it does not draw more than 500mA. However, if its connected to a charger, there is no Host ID, so it gets the max current the charger can drive! Last edited by tsk1979 : 17th September 2013 at 15:42. | |
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![]() | #16262 | |
Distinguished - BHPian ![]() ![]() Join Date: Jun 2007 Location: Chennai
Posts: 9,660
Thanked: 16,098 Times
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![]() I do not use internet or search facilities on the mobile very much, but last time I did, I was shocked to see that Google search presented me with the last few search terms I had used on the computer. It does not take a lot of imagination to see how that could be somewhat embarrassing. Well, my search terms were boringly harmless, but still, I feel it is intrusive, and I found the option to turn it off. In fact, I have frozen (Titanium Backup) Search on my phone. It may be the thing that Google most wants me to do with the thing, but it is not what I most want to do, and pressing the button accidentally is a pain. If I want search, I'll use a browser. I don't want Google Now either. Perhaps I'll just join you in the hills, but we'll have to remember to turn off the location-sharing services before we leave. | |
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![]() | #16263 |
Senior - BHPian ![]() | ![]() Is it really advisable to install antivirus apps on Android smartphones? They are known to slow down the phone! |
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![]() | #16264 | |
BHPian ![]() Join Date: Jul 2011 Location: Dubai,Hyderabad
Posts: 470
Thanked: 77 Times
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If you don't install any Android apps and just use your phone for making and receiving calls and for SMS text messaging, then it's unlikely that you will have any malware on your device. If you do install software, stick to authoritative software repositories (though sometimes those can let in malware if they don't do a proper check). A non-rooted Android device also limits what you can do with it so you aren't likely to brick the device if it does get affected by malware. | |
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![]() | #16265 | |
Team-BHP Support ![]() ![]() | ![]() Quote:
That also explains why older portable hard disks needed to two USB 2.0 ports. Because they would only be connected in a slave mode and current rating is restricted. But having said that, we also need to find out if the phone's power management circuit can take that higher current rating. (Should not be major problem I guess.) Last edited by ampere : 17th September 2013 at 17:41. | |
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![]() | #16266 | ||||
BHPian ![]() Join Date: Mar 2011 Location: Bangalore
Posts: 242
Thanked: 80 Times
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![]() Faced very similar charging issue sometime last month. The charging had become slow. Slow meaning *extremely* slow. What used to take 2 or 2.5 hours now used to take close to 7 or 8 hours for full charge - This with the proper 2 amp charger and not the USB charging which is 4 times slower (500ma max current output). I never charge using USB since it just eats a lot of time. Tried to find the cause for it. I never doubted the cable initially. Thought the main charger had a problem. Tried with a friend's 2 Amp note 2 charger (with his own cable). It still had the same problem. *Mistake number 1* Downloaded the galaxy current lite app and it showed that the charge current is 300 ma when its connected to the charger. (Got to know online that this should ideally be around 1700 mah for the note 2 with the 2 amp charger). I straight away decided that there is some problem with my phone coz it can't happen that it charges slowly with 2 different chargers. Did a reset of the phone and tried again. No use. The problem persisted. Went to the galaxy service center at the Dreams Mall in Bhandup (Mumbai), they tried with a different charge cable and still the problem persisted. So, they said they are going to replace the charging module and give it back. Took a whole of 8 days and numerous calls and escalation to get in 8 days - Samsung service is totally screwed up. Have owned an Iphone and HTC product before this, had a much smoother experience with them whenever I had problems. The reasons they quoted for delay was even funnier - Part is not available! Remember that this was before the Note 3 release and was then a top of the line Note product. When I spoke to escalation team, they understood where I was coming from and stopped giving all the funny reasons - Part not available / Coming from Chennai so would take time. The best part is, I made the call to the escalation team when the service center guy said there is no part available on the morning of the 8th day. And, the phone was ready by evening! Did not bother to check if it was working fine at the service center coz I was just so relieved to get the phone back. Came back home and yeah, the problem was still not solved! After all that circus, I was back to square one. Went to my friends room again to try different combinations of charger / charge cable that would pin point the reason (He has a note 2 too). Lo and behold, I came to conclusion that my friend was having the same problem as mine. He is not such a tech guy and never bothered to notice it all the while! He said he used to put his phone for charge for 7 or 8 hours overnight and it would run the whole day. He doesn't use many apps or data throughout the day as well. So, it didnt really hurt him to notice the problem. Remember *Mistake number 1*. Well this was it. I cursed myself for not trying these combinations out the first time! Then I goto another friends room in a hope of finding something. He has a motorola with a 800 mah charger, but, that cable of Motorola looked really sturdy and thick - Much thicker than the Samsung default one. I used that cable with my charger and finally - 1700 mah reading on the galaxy current app. I went bonkers.So, it was after all a cable problem. But wait, I tried my samsung cable on his phone and there was no difference in charging rates with his default motorola cable and my samsung cable (the one which I thought had conked off). I exchanged the cable with him and am till today using the same cable of Motorola! If it was actually a cable problem, why wasn't it detected when the service center guy swapped the cables? I wondered. So, when I was in Bangalore and had some free time, I went to many shops trying out multiple micro usb charge cables. Out of the 7 or 8 different ones I tried, I got only one cable which charged at 1700. The rest would top off at 1100, 800, 900 odd. I really don't know what's going on. I did not pick up that one cable that charged at 1700 since the price he quoted was insanely high. (He knew I was impressed with the cable) Came home and searched for cable on ebay. There are tons of them. Saw a seller selling a flat micro usb cable. He had high ratings and was a power seller and he claimed that the cable was for Note 2 and S3. 150 bucks. I thought ill give it a try. The cable looked good, but, when I put it to charge, same old problem, charges at 700 mah max. I got bugged and stop bothering about buying a new one. I still use the Motorola cable and my friend uses my Samsung one. I have also told him that I am not giving that Motorola cable back anytime soon and if he wants he can use the flat cable I got from ebay as well ![]() | ||||
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![]() | #16267 |
Senior - BHPian ![]() Join Date: Aug 2009 Location: Solapur (MH-13)
Posts: 1,619
Thanked: 501 Times
| ![]() I have now changed my Mind and want to go for Lenovo Phone. I hope they are better if not best. My options are- 1) S820- a) Display- 4.7", b) Battery- 2000 mAh, c) Camera- 12 MP and 2 MP. 2) S920- a) Display- 5.3", b) Battery- 2250 mAh, c) Camera- 8 MP and 2 MP 3) P780- a) Display- 5.0", b) Battery- 4000mAh, c) Camera- 8 MP and 720p (When searched online it came to ~0.9 MP) Which of the above phone's Primary Camera has best capturing capability? I have read here that the 8 MP of Karbonn's phone has bad capturing capability. Is the same in case of Lenovo? I want to know whether the 2250mAh Battery is sufficient for 5.3" Display of S920 (I know the backup wont be as good as 4000mAh of P780 one though. But still I want to know)? Also whether all above three phones don't have removable battery option? I am confused between the above three models. As far as my budget of 20K is concerned, I have checked out eBay prices for above three phones and all come under 20K Price Bracket at some sellers. Please help me experts. One more doubt I have- Does 4.2 Jelly Bean by default come with Kingsoft Office? If not can I install it from Google Play or some other source for Free? Last edited by aah78 : 17th September 2013 at 23:33. Reason: Quote edited as requested. |
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![]() | #16268 | |
Team-BHP Support ![]() ![]() | ![]() Quote:
BTW I also have a Motorola cable of my old Atrix2. ![]() Though I never bothered to check how long it takes. But I also see the charging time for Xperia ZR is quite good. Xperia cable is also quite sturdy. Most of these cables are designed within the USB spec. The higher current sinking capability may be outside the USB spec when in slave mode (As TSK observed). Hence when used as chargers, different cables may give different charging times (even if the source charger has the same current capacity to pump) Last edited by ampere : 17th September 2013 at 19:55. | |
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![]() | #16269 |
Senior - BHPian ![]() | ![]() Though this has nothing to do with slow charging rate in Note II, My brother keeps his Note II connected to charger whole night. Some times I do same with my HTC One V, Is this fine? |
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![]() | #16270 | |
Team-BHP Support ![]() ![]() | ![]() Quote:
I had to buy 2-3 different cables before I could get fast charging from my in car charger. | |
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![]() | #16271 |
Distinguished - BHPian ![]() ![]() Join Date: Jun 2007 Location: Chennai
Posts: 9,660
Thanked: 16,098 Times
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![]() | #16272 |
Team-BHP Support ![]() ![]() | ![]() He He! True. Ohmic is used more for "contacts", "heating" etc which are manifestations of resistive nature. (More of a technical term rather than English!) I just dared to use it that way! I should have mentioned IR drop! ![]() Last edited by ampere : 17th September 2013 at 21:11. |
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![]() | #16273 | |||
Senior - BHPian ![]() Join Date: May 2010 Location: Bengaluru
Posts: 3,366
Thanked: 2,866 Times
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Question is, if the problem is with the cable then why did not show the slow charging problem from Day 1? Did the resistance of the cable magically increase over time? If so, then what is the guarantee that if you purchase a new cable , it will work fine properly for a long time? PS: Any such current measuring app for Nexus4? | |||
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![]() | #16274 | |
Team-BHP Support ![]() ![]() | ![]() Quote:
Again I can only venture to guess: Any thing to do with the contacts? I do agree suddenly the resistance cant change just like that unless something physically snapped inside. And assuming the charger is correct, the only other I can think about is some increase in contact resistance over time. Please don't flame me for this. I am just thinking loud and its pure guess work. Thats also seems quite low a possibility. Last edited by ampere : 17th September 2013 at 21:33. | |
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![]() | #16275 | |
Team-BHP Support ![]() ![]() | ![]() Quote:
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