yashsingh1/xdaforums huggingface dataset:
[Motorola Droid RAZR] brkahughes:
WARNING - OFF TOPIC discussion... Feel free to ignore.

[MENTION=4245858]Ohmster[/MENTION], I don't want to wage a "techie war", but a minor bit of OCD forces me to point out a couple of things. Research will show that all modern USB chargers are based on extremely miniaturized SMPS. If that were not so, then Ohm's law (why does that name sound familiar?) would dictate that that 2cm square cube is dropping approximately 105 volts at 0.7 amps. That would be almost 74 watts of heat, or twice that produced by a hobbyist soldering iron! Since I don't smell burning plastic, that's out; and there isn't enough room in there for a 60Hz transformer!

Second, the amount of current drawn during charging is limited by the charging circuit in the phone rather than the charger, one reason why the phone gets warm while charging. The battery IS 3.x volts, while the USB supply is 5.0 or 5.1, the final regulation and current limiting is performed inside and *most* phones are quite forgiving. If the voltage is correct, your RAZR won't draw more than it's maximum design charging current no matter what is available.

Again, no war, no flames, just friends here. [emoji41]

- Brian

"... no matter where you go, there you are.". -Buckaroo Banzai

AIO XT912 Stock Utility:

Reflash/Root/SafeStrap​
[Motorola Droid RAZR] brkahughes:
http://electronics.stackexchange.com/questions/31018/how-do-the-tiny-ac-usb-power-supplies-work

And, obviously, I wasn't referring to the rated power consumption of the adapter, but rather to the amount of heat generated by dropping 110 volts to 5 volts by resistive means:

V x I = P

105v x 0.7a = 73.5 watts

Snappy enough? "Doh"

- Brian

"... no matter where you go, there you are.". -Buckaroo Banzai

AIO XT912 Stock Utility:

Reflash/Root/SafeStrap​

---------- Post added at 01:16 AM ---------- Previous post was at 01:14 AM ----------

FYI: been at this since 1972...

- Brian

"... no matter where you go, there you are.". -Buckaroo Banzai

AIO XT912 Stock Utility:

Reflash/Root/SafeStrap​
[Motorola Droid RAZR] Ohmster:
NO. Absolutely not. Here is the mistake: "dropping 110 volts to 5 volts by resistive means"

Dropping voltage by resistive means went out with the horse and buggy. We are not using resistive means, we are using transformer AC induction voltage conversion here, very little loss in the form of heat. 10 turns on the primary 110V input and 100 turns on the AC output yields 1,100 volts and there is no noticeable heat loss, or very little, if that. Less turns on the secondary than the primary will reduce the voltage output. That is how we get Tesla coils able to jack up 110VAC to 100,000 or even one million volts. Put 10 turns on the primary winding of a very tall transformer and 10,000,000 turns on the secondary winding and you get 1 million volts out of 100 volts. Dangerous, yes. Lots of very heavy insulation, yes. Resistance lose in the form of heat, very little unless you are using "carbonized cotton thread for wire" or even steel wire. (You would need more windings than ten for the primary, but the ratio is input #windings voltage x secondary #windings = output voltage.)

Backatcha. I do respect your experience Brian, but you must think in terms of electronic formulas. Look them up and if you do not have experience in the theory, then you will have to read it first. Been there, done that, still have the books. Not that I am special or a genius, it was simply my job for my entire life

and I am very good at it

. :)

You been doing this since 1972? What kind of work did you do? I graduated Computer Processing Institute in 1982 and that is where I got my diploma in Electronics Technology. 3.9 GPA because I got ONE B on a test, ONLY because the other students complained I came in late, left early, and got an A on every test. The teacher was pressured by politics to giving me on B on Digital Electronics, can you imagine? :(
[Motorola Droid RAZR] Meneldur:
It is mine too, but after a couple of ANRs of Nova when that nasty lag issue appeared I switched back to Apex for testing. And Apex wasn't marked ANR on last lag moment, so I'll stick with it for a while.
[Motorola Droid RAZR] brkahughes:
OMG! Is it possible that what you are actually NOT good at is realizing that someone besides "the ohmster" knows something? "Dropping the voltage resistively" was never a real suggestion, it was an intentionally ridiculous statement, which along with pointing out the fact that there is no room in those tiny chargers for a 60Hz transformer, was meant to point out to you the impossibility of any technology being used OTHER than SMPS!

A large chunk of my past was spent as a television broadcast engineer, including the need to study and earn a First Class FCC Radiotelephone License back when they meant something: qualifying me to repair and calibrate high-power commercial broadcast transmitters along with all of the analog and digital studio equipment. Following that I became an independent contract engineer. In 2000-2001 I was a project lead for TRW Aerospace on an Advanced Warfighting Experiment under a Defense Dept. contract, integrating cutting edge computer and communication systems into the Brigade level and below. The contract ended a huge success, with commendations for all.

I don't tend to drag out my qualifications, and try to never put anyone down... I assume that your perception of what I was saying in my posts may have been clouded by the lateness of the hour, or by the chronic pain caused by your back injury, and I appreciate that you edited your post a couple of times in an attempt to "soften" it. Perhaps my points would be clearer upon rereading, but, at any rate, I believe we should leave this unprofitable episode behind and return to the main goal of helping the most people possible in one of the most pleasant threads on XDA, my friend.

- Brian

"... no matter where you go, there you are.". -Buckaroo Banzai

AIO XT912 Stock Utility:

Reflash/Root/SafeStrap​
[Motorola Droid RAZR] SimpTheChimp:
Side-Question: Asking cause I am sure I saw something about this previously....

Is it possible to somehow use the LINARO kernel with CM 11? I.E. Like the one in AxxionKat? When I was trying out AxxionKat I seem to recall the kernel had some extra features; and possibly was a little more stable.

Again, just wondering... and if it

were

possible what would be the procedure to build and flash it?
[Motorola Droid RAZR] welder73:
Just extract files from Axxion rom,from etc/kexec folder and paste them over in to the same folder in CM,set permissions rw-r-r and reboot the phone.

Sent from my Razr XT910
[Motorola Droid RAZR] d.casper.b:
Nightly news: 10/27 working well. I've been running it for only 7 hours, and it's doing me well so far.

Generated on a RAZR Maxx (XT910) using XDA's free mobile app.
[Motorola Droid RAZR] farangcm:
I am just a beginner with Xposed Framework, but I am using it with CM11 without any custom kernel. I use the "CPUFreq in Statusbar" (thx to Ohmster), "DS Battery Saver," "Greenify free," "PlayPermissionsExposed," and "XPrivacy" modules. It's possible that they are slowing down my system a little, but I hope they are doing more good than harm. BTW, Deep Sleep Battery Saver and Greenify can be run without the framework, but they will lose a few features.

When I update CM11 nightlies with just a Dalvik and Cache wipe, I have to open the Xposed Installer app, click the "Framework==>Install/Update" option, and then it prompts to reboot. After reboot, everything works again. When you install a new Framework module, you first activate the module in the Xposed Installer (just check the box of the already listed module) and then reboot.

I am on 10/27 nightly also, and I like it--no new problems, so far. I see Spyder already has a 10/28 nightly, so I expect umts_spyder to get it shortly.
[Motorola Droid RAZR] Ohmster:
Oh gosh, Brian, I am not here to make enemies. You credentials are impeccable. Yes, the lateness of the hour and the fact that this is my "bad week", waiting on medication delivery that always seems to be late, contributed to my bullheadedness. I am only basing my interpretation on past experience. And truthfully, repairing cellphone chargers is not on my resume. At this point, the discussion, which I think would be fun, is just making me feel bad and I get the impression, my lack of diplomacy at this point is beginning to chafe even you, my dear friend. I am simply too irritable to have fun with this anymore. We both have qualifications and I am satisfied you are well aware of the laws of electricity.

Besides, this discussion is really not helping the Droid community, which we both have an obligation to fulfill as senior members. Brian, you know your stuff, 6 of one kind, ½ dozen of another. You are a smart guy, Brian, and I admire your analytical methods, a lot. Let's stay friends, shake hands, and move on. What do you say?

Alright, since I openly admit to having a lack of experience with modern phone charger, time to settle this once and for all. I broke open a Motorola cellphone charger, 650mA @ 5VDC. I am sure you will recognize what you are looking at. For the benefit of others, lo and behold, Brian is correct. You are looking at a switch mode power supply, a true SMPS. All micro miniaturized for a very small package. I stand corrected.

[IMG="SMPS power supply phone charger"]http://home.comcast.net/~theohmster/image/2014-10-28%2013.07.42a.jpg[/IMG]

http://home.comcast.net/~theohmster/image/2014-10-28%2013.07.42a.jpg

Hopefully by the end of the week I will get what I need and be back to my old self again. Seriously, your resume is quite impressive! You have a good education and a lot of experience. Please accept my apologies if I rubbed you the wrong way. Take care, Brian. ;)

P.S.

Nice avatar! I can believe what I see in that avatar that this guy has been around and knows a lot. The cartoon robot is anybody's guess. 8th grade kid, high school student, or Aerospace Engineer. Yeah, you do look like an engineer. Handsome guy if I were a women in the market for a good man. LOL! :laugh:
[Motorola Droid RAZR] l33tlinuxh4x0r:
The droid turbo comes out on the 30th... It looks pretty sweet. It is a major upgrade from what we have. Any thoughts on if I should try to get a Trubo (64GB Ballistic Nylon version) or some other phone? I was also considering the LG G3. The nexus 6 is not an option becuase you have to pay full price up front. Any input would be helpful Thanks in advance.
[Motorola Droid RAZR] rgerrans:
I think I'm making the jump on Thursday to the Turbo. Just haven't seen enough in any of the other handsets (came close on the new X) to make the jump. To me the reason I went to the Maxx in the first place (and the reason I didn't make a jump to the new X) is battery life. I wish the Turbo had the 4.7 screen so it was a little smaller but it looks like it will size out nicely vs. the LG3 and similar while being much more future proof (and did I mention the battery life ;) Given the overall specs on this device (combined with Google looking like it's getting off the Moore's curve software requirements path) means this one should be a solid performer for quite a while (I hate the idea of replacing a working phone every 2-3 years just due to it not being able to keep up with software).

To me the Nexus 6 is just too big to be usable as a phone.

Just my $.02....
[Motorola Droid RAZR] my2cents:
+1! I'm getting the new turbo also. I love my razr, but the turbo is a nice phone. It's $25 a month on edge, which is what my discount is because of my data plan, so it is basically free, right?!? :p

I also looked at the Nexus 6, but the battery isnt as big, the camera isn't 21 MP, and 6" is just to big for a phone. I thought 4.3 was large when the first Evo came out. The turbo has the best combo, IMO. I think I want the 64 GB too.
[Motorola Droid RAZR] scottgti:
I'm returning my Moto X and getting the Droid Turbo.
[Motorola Droid RAZR] sonomazr2:
I have already returned my Moto X and am unpatiently waiting till the 30th. I will also be keeping the trusty RAZR Maxx . Having the X for 2 weeks kinda spoiled me to new hardware.
[Motorola Droid RAZR] SimpTheChimp:
Well, I expanded Axxion and checked that folder, and the files are there and match the same named files in the CM 11 etc folder (names only of course).

So... the next questions are: Has anyone in their right mind tried this before? :D Is it, like, going to blow up my ROM entirely? Again, I thought I had seen someone trying this before, but I don't know where I saw it nor the results.

And finally, can I do this copy while CM is running? Or do I have to reboot back to recovery in order to do the copy/replace? And if that is the case, do you know if SafeStrap's file manager will allow me to set permissions on these files?
[Motorola Droid RAZR] Ohmster:
Tom, is it?

You can safely copy files over while cm11 is running, set permissions, then reboot. Use a rooted file manger or even the cm11 build in file manager is good, whey you run it as root through the menu and unlock the little padlock icon.

What is it you are trying to do, anyway? Been experiencing a lot of pain and could not keep up with the board as much. Lot of folks want new phones.
[Motorola Droid RAZR] brkahughes:
I have never tried swapping out kernels while in use on a running system! I would be sure to have everything backed up first just to be safe and a restore utility handy... I have used SafeStrap file manager for that purpose and cleared cache before rebooting, maybe 'fix permissions' since it only takes a moment. The seeming expert on this (no offense, welder) would be [MENTION=4977351]DumbleCore[/MENTION], who opens two ROM zips in separate Windows explorer windows and just drags and drops the kernel from /system/etc/kexec/; system apps from /system/, and deletes the built-in apps he doesn't want all before he even flashes a new ROM on his phone! I don't know if he even tries a ROM "naked" first. At any rate, welcome to the deep end!

- Brian

"... no matter where you go, there you are.". -Buckaroo Banzai

AIO XT912 Stock Utility:

Reflash/Root/SafeStrap​
[Motorola Droid RAZR] Ohmster:
Build Report 10/27

Build Report 10/27

Updated OTA to CyanogenMod NGHTLY build 10/27 yesterday. Install went well. Only lag experienced was the initial boot to rebuild the Dalvik Cache. That took a couple of minutes, after that, strong signal lock and smooth sailing.

Since it has been well over 24 hours, the phone slept all night and next day held no surprises. For those concerned, still cannot save contacts from dialer app but you can certainly do it from the Contacts app. I am running Xposed Framework with 12 modules and there is no lag or issues. This is a good rom. The last 5 builds or so since the big one have all been very good, last few are best.

I still think that cm11 does not get as strong a signal as stock Jellybean. At home and in most places, I have full bars. But while traveling at times, I get low signal, two bars. Sometimes in Government buildings I get little to no signal while the other people waiting are chatting happily on their iPhones and Galaxy phones. I cannot even place a call in places like that.

Anyone running the snapshot or a month old rom, now is a very good time to update. 'night guys! :)

---------- Post added at 10:04 PM ---------- Previous post was at 09:45 PM ----------

Oh my, I didn't realize that you are changing your kernel. Brian is quite right, you need to be safe when doing something like that. This LINARO kernel seems to be really nice with some great features you can access through Xposed Modules. Why not do this the easy way and simply download the zip file, flash it in Safe Strap, and reboot? Unless you have some other things you want done, I would do it the easy way.

Download page and all the instructions you need in the link below. This is simply a download and flash procedure. Safer than tampering with system files if you are not comfortable with it. Actually, this looks pretty nice, I might even try it myself. ;)

[KERNEL] [N5] [S2W] [F2FS] Linaro Kernel | r64t1 | 3.4.104 | 4.4.4 | A15 GCC 4.9.2 |

Good luck, Tom. Let us know how it goes, eh? :good:
[Motorola Droid RAZR] SimpTheChimp:
Me? Oh I'm just goofing around... :p Seriously, I had tried AxxionKat previously and I liked the Linaro kernel - seemed stable and was more customizable than the CM kernel. So was just wondering if it were even possible to use that kernel with CM.

And.... wow, it looks like it actually boots - and runs! I'll play with it awhile and see what happens. I can always reflash and go back to the CM kernel.

UPDATE: Hmm... I would have thought using this would give me more governors - but I still see the same old ones I had before.

---------- Post added at 10:27 PM ---------- Previous post was at 10:12 PM ----------

I had seen this before, but that topic is in the Nexus forum... Isn't this kernel specifically for the Nexus? Or will it work on the Razr as well (XT912)?

Update 2: Well the AxxionKat kernel works, but unfortunately there seems to be NO wifi when it is loaded. Can't turn it on, can't connect, etc. I'll have to reflash or try this kernel from above.
[Motorola Droid RAZR] Ohmster:
Well, you got lucky, it boots! :D

Seriously, if you had downloaded and flashed the zip file, you would have gotten the Aroma installer, where, you get to backup your current kernel, make choices as to what features you want and what you don't, and could always go back and flash the same zip file again in Safe Strap to change your choices or restore the kernel you had.

You would have gotten a LOT of great features by flashing the zip file, here are two that I think are very cool:

Wake gestures interface (requires this xposed module)

Audio call recording support (you need this app)

Actually, I have been dying for an audio call recorder and this kernel provides it, I really might just flash this because it is low risk. The Aroma installer can be run again to remove it and this is a prized feature.

Me, I would rather use the Aroma installer, it is the same one you get with the JBX kernel. You can still download the zip, choose what you want, and install the Wake Gestures Xposed Module as suggested to control battery usage. Since you already changed the kernel files, the only thing you can revert to is what you have now, unless you restore a recent Safe Strap backup and then flash the Linaro kernel proper.

But hey, you got it done and that should boost your confidence enough to play around some more. Nice job Tom! :good:
[Motorola Droid RAZR] SimpTheChimp:
Well, I did get it done - I've been flashing ROMs since my good old Droid Incredible days - but the AxxionKat kernel blew up the WiFi somehow. Never would connect anymore - and the LTE got really flakey. So I just updated/reflashed to the CM 10-28 build (I was going to anyway) which should restore my kernel back to CM.

But if you try that zip file, let me know how that works. Again, I just wonder if that is a generic kernel that will work on the Razr, or if it is specifically Nexus base; cause if its the latter I don't see how it would work.

---------- Post added at 10:52 PM ---------- Previous post was at 10:47 PM ----------

Scottgti, did you not like the Moto X? Or is the Turbo that much better?

I gotta upgrade to a new phone soon (my wife's old Droid Bionic is gonna bite the dust soon, so I may as well upgrade too) and I was really liking the Moto X (except for the lack of the microSD card slot). So just curious if there was something you specifically didn't like about the X, or if you just wanted something a little more powerful.

-Tom
[Motorola Droid RAZR] Ohmster:
Tom, you will be doing yourself and the Razr community a BIG SERVICE if you flash this kernel proper with the Aroma installer and report how it went. We all want to try cool new things and I am drooling at that phone recording app. If you don't do it, I will. But really, you got center stage on this one and already tried it "the hard way". Give it a go and flash it, then report, will you? Pay attention to the installer options and write them down so you will not forget what you have to work with. Thanks buddy. :good:
[Motorola Droid RAZR] scottgti:
---------- Post added at 10:52 PM ---------- Previous post was at 10:47 PM ----------

[/COLOR]

Scottgti, did you not like the Moto X? Or is the Turbo that much better?

I gotta upgrade to a new phone soon (my wife's old Droid Bionic is gonna bite the dust soon, so I may as well upgrade too) and I was really liking the Moto X (except for the lack of the microSD card slot). So just curious if there was something you specifically didn't like about the X, or if you just wanted something a little more powerful.

-Tom[/QUOTE]

I never even turned it on. Beautiful phone. I have a RAZR Maxx, so the Moto X battery scared me. It took a month to get my phone and the $50 Verizon rebate expired, so I'm returning it.
[Motorola Droid RAZR] SimpTheChimp:
I never even turned it on. Beautiful phone. I have a RAZR Maxx, so the Moto X battery scared me. It took a month to get my phone and the $50 Verizon rebate expired, so I'm returning it.[/QUOTE]

Actually I just read a few articles on the Turbo.... Dang, now I may have to reconsider it rather than the X! :D Sounds pretty powerful, and that battery has got to make life easier!!

---------- Post added at 11:07 PM ---------- Previous post was at 11:05 PM ----------

OK I'll give it a shot, but not till tomorrow.... Gotta head to bed, long day and I'm beat. I'll report back what I find though.
[Motorola Droid RAZR] brkahughes:
AFAIK, although I'm no expert, the Hardware Abstraction Layer (device- specific routines, etc.) is part of the kernel as distributed. Therefore not portable between different devices. Anyone else know for sure?

- Brian

"... no matter where you go, there you are.". -Buckaroo Banzai

AIO XT912 Stock Utility:

Reflash/Root/SafeStrap​
[Motorola Droid RAZR] Ohmster:
I don't, but I like this kernel and that audio record feature. The cm11 team has been debating including phone call recording for months and they can't agree on the legal status of it. Some want a pop up disclaimer, other devs reject it. So it looks like it will not come to cm11 anytime soon. I am good with Safe Strap backups and the meds I desperately need for back pain will come next day air tomorrow. Once I feel better, I will flash it and give a report. Thanks for the suggestion, Bri! :D
[Motorola Droid RAZR] welder73:
None taken :)

I tried this method a few times and it worked :thumbup:

If you want more governors then use the kernel from Mokee.

And don't flash that kernel that [MENTION=4245858]Ohmster[/MENTION] told you,the only custom kernel that you can flash and the only one that will work in our phones is JBX!

Sent from my Razr XT910
[Motorola Droid RAZR] Ohmster:
You know this? You tried it? I know it uses the same installer as JBX but will it work on our phones, that I don't know. I would only try this with a new nandroid backup. If the zip flash and kernel tank, it is easy to restore with Safe Strap. I will try it if you don't know for certain but you could save a lot of time and frustration here if you can share what you know about it, Welder.

What happened when you tried this or what did you hear about it, Welder? :confused:

UPDATE:

My bad, I didn't read the entire thing. Good save, Welder. This is the part I didn't initially see:

This is an AOSP based kernel, so it won't work with CAF based ROMs like CM11

Tom, don't waste your time. If you inserted this kernel manually, take it out by re-flashing cm11 or restore backup. Sorry about that. :o