Database Users

In a dilemma, need opinions/advice/suggestions

I currently have a Rogers Dream/G1, pre 911-update, running the latest CM FW.
My G1 has 3 issues, 2 of which I am sure are related.
1. The compass/accelerometers are messed up in that in Google Street View and other such apps, standing perfectly still still causes the view to jitter significantly and wildly/sporadically.
2. The GPS takes at least 8 minutes to get my location (when it used to take under 1 minute) which is probably due to the messed up internal compass/accelerometers.
3. The audio through USB->3.5mm jack to headphones does not work at all (sometimes I just the right ear). I am not sure if the issue lies with the phone's internals, with the usb port pins on the phone, or with my USB to 3.5mm adapter, so let's ignore this problem for now.
I called HTC and they are willing to repair/replace (I don't know which) my phone, but I am assuming that it will be shipped back to me with the 911-update.
I use Debian on my G1, have a much needed swap-space partition, use Apps2SD. Not to mention that community made ROMs are much faster than Rogers' ROM and offer more (which is why I use CM and swithc to some others for fun sometimes).
What would you do? What do you think HTC will send me back? Do you think I can twist either Rogers or HTC's arm to give me something because of this 911 problem?
Thanks,
Mike

NFC not working?

I have a nexus 7 and a nexus 4: My wife has another nexus 7
I have been using nfc on very few ocassions, but it's comfortable when my wife wants to send me a link and we are just in the same place, instead of pushbullet, i used to use NFC: Put the devices back to back and receive the link.
For some time, my device has been in the hands of a repair technician because I had a fatal drop that ended my nexus 4 screen a while ago. Long story short: LG kept sending defective pieces and everytime I got the phone back, I'd find something not working: Battery damaged, Screen doing weird colors, proximity sensor not working.... not joking.. a lot of problems: But now it seems fixed for good - i even got the back cover replaced, where, i think, the NFC chip is located.
Now, lately, I've playing around with some new AOSP 5.0 images: First, with an unofficial CM12 ROM.
After the first boot, you get the option to transfer your data from another nfc enabled device to your device, so I put my nexus 7 (with cyanogenmod 4.4.4) back to back with the nexus 4: Nothing happened: "Well, maybe because it's a new system, NFC is not working".... then I kept on playing with the rom, not really concerned about NFC.
Some days later, I shifted my Nexus 7 to SimpleAOSP 5.0 and afterwards, did the same with the nexus 4: Again, NFC did not work between both devices upon the nexus 4 first boot: Something's wrong.
I opened the device and the NFC chip seems to be there. Hardware-wise, at first look, everything seems to be on it's place: I even flashed the latest radio image from the official image downloaded from google: Still no luck
I tested reading my gym's card: It's nfc enabled and my nexus 7 reacts to it: You just install a reading app and can see what's on the card. However, the nexus 4 does not react at all.
I don't know what else to do and finally, gave the NFC capabilities for lost. Anyway, no biggie: I don't really need them.
But today, at my job, I decided to try something: I have an unofficial wireless charger. I thought those worked with NFC so, to my surprise, when I put the device on the charger base, it got detected and it's actually currently charging beside me while I write this....
What's going on? Or perhaps I'm wrong and wireless charging is not related to NFC at all?
Please help.

NFC and wireless charging isn't related, there's 2 coils on back of phone - one for NFC and other for wireless charging - check connection of those 4 pads : http://www.parts4repair.com/nfc-wireless-charging-coil-for-lg-nexus-4-e960/ , looks like nfc part isn't working ...

Ok, so what you linked is the wireless charging receptor?
Can you point on some image which exactly are the nfc antenna is so I can review them and see if they make contact successfully? Or you mean the same "pad" on the back has both antennas?
Thanks!

here you can see 2 coils - one for nfc, other for charging http://cdn2.bigcommerce.com/server5...ntenna_02__02990.1411006050.1280.1280.jpg?c=2

So, If one of them is not working, i have to change the whole thing... right?

yes, but first check coils resistance with multimeter and double check connection from mainboard to this nfc/charging receiver pads .

RolF2 said:
yes, but first check coils resistance with multimeter and double check connection from mainboard to this nfc/charging receiver pads .
Click to expand...
Click to collapse
This is beyond my knowledge: I'll try the old cover with the working nfc and if it works, switch the coil from the old back to the new one.... my insurance really messed up this time: I have been more than 9 months trying to fix the phone. Originally it war a broken screen... they fix one thing: Break two and the worst thing is that it usually takes me some weeks to notice, so finally, maybe they'll think I'm trying to scam them or something..... it really drives me mad.
Thank you.

[Solved] I9505 NFC activation.

Original Question
I have a refurbished I9505 from China. (Ahh bless)
When it arrived the MicroSD and NFC didn't work.
I have stripped the phone down and re-seated the MicroSD/SIM card module connector.
This has re-enabled the MicroSD card, but NFC still doesn't work.
I have tried a VISA card, NFC tags and other touch to transmit/start devices like speakers and Sony phones.
Not a beep. :crying:
I have an NFC antenna battery and NFC is switched on in the settings.
Google Play NFC test apps say NFC is on and available.
Via Odin and/or Kies I have installed/re-installed a number of Android 4.4.2 - 5.0.1 ROMs with factory/cache resets.
I do note there is what almost looks like a cut mark across the back of the battery and wonder if this has damaged the Antenna/battery in some way.
The 'cut' mark is on the inner side of the battery and one would assume the antenna would be on the outer/back cover side of the battery.
I have ordered a new NFC battery in case its a poor/bad connection or something.
I've read of several people who have had problems with NFC, but there doesn't seem to be any real answers(that I've managed to find) outside of NFC battery Antenna and switch NFC on. (basic stuff)
I do note the Broadcom BCM20794 NFC controller IC is located under the MicroSD/SIM module which looks like a bit of a mission to remove to view the NFC chip.
AND there is every chance the chip is soldered to the main board and may not be available for purchase.
Maybe in the to hard basket for me....maybe...
Does anyone know how robust these NFC chips on the main board are AND are they a 'known' point of failure.
Update (Fix)
I got a replacement NFC battery for the SG4 I9505 and this restored NFC functionality.
The replacement battery is dated Nov-2015.
The Original NFC battery that came in my Chinese refurbished phone was manufactured in 2016.
It was noted that the battery had a small scratch on the back of it with the letters LQ written in felt pen.
Does "LQ" stand for "Low Quality" and was the small scratch on the back of the battery a way of noting it had not passed a prescribed test?
All conjecture, but it did NOT support NFC and the new replacement battery DOES support NFC, so one can only guess.
So, new battery fixed NFC problem in my case.

NFC Reader on our MXP?

I can't find much information on NFC readers on our MXP. Can our phones do this? I'm looking to copy an NFC card and keep that data on the MXP and then use that instead of the physical card, is this possible and how would I go about it?

Highly unlikely I think. I don't know if such thing exist even on other phones. But we can emulate that by getting an nfc sticker and stick it inside the phone back cover, while making sure that it is not within the phone nfc sensor detection.

Question NFC Antenna Location

Does someone know the location of the NFC antenna on the Nothing Phone 1?

I would say above wireless charging coil

This is my first phone with NFC so I need to get used to the reader placement. I get detections the most often in the bottom left quadrant of the charging coil (looking at the phone from the back).
I also have best luck when the phone is unlocked, but I've seen it detect my yubikey from sleep after I accidentally placed my phone on top of it. Can't reproduce the latter though.

I haven't really thought about it because it reacts every time I use Google pay. I don't have to move the phone around to "find the chip". That used to happen on my old phone.