Related
Got my 900 Yesterday and realized his morning that the charge cable had popped out overnight. Upon inspection I discovered that the shape of the hole in the Silicone cover I received (AT&T is giving away $100 of accessories in Illinois on top of everything else, WOOT!) is not the same as the shape of the micro-USB cable that came with the phone. I thought it was a genuine Nokia case, I don't have the box because the were kind enough to dispose of it.
I'm curious if anyone else has run into this? The charge cable is fairly oval shaped while the hole in the case is more of a basic trapezoid /__\.
Has anyone else run into this or do your hole and cable shape match up, if so are you matched oval or trapezoid?
you know my car charger won't fit and I have a Samsung Micro-USB cable that I use to plug it into my computer and that one is super lose. But then I use some third party no name micro-USB cable that I use to charge and that one fits perfectly fine. Have you tried the actual cable that came with the phone? Usually those Nokia cables are high quality.
Yeah, it's the stock cable that came with the phone that won't fit. It's quite secure without the case on, but pops off when using the case due to the difference in hole shape.
If Nokia would have centered the usb port it would be less an issue. Very annoying to me as well so I took the dremel to the case. The case is so tight I don't want to have to remove it constantly.
Yeah, I noted this in my review of the L900. I am tempted to carve out part of the gel case, but it would probably be noticeable from the front of the phone. They should have centered the micro-USB socket on the top of the phone.
The one thing I miss from my Surround is the indicator light. Not for missed calls (I don't get many). But liked knowing the phone was charging/charged. Now I have to power on to be sure the cable didn't move.
Sent from my Lumia 900 using Board Express
The rocketfish micro USB data cable will for sure work and latch on and some other rocketfish micro USB products (such as the car charger). I had the same problem with all my existing micro USB cables and I stopped by best buy and plugged in all of their micro USB cables into my phone with the gel case to see which ones would work.
I have that exact same case and all USB cables I have tried fit perfectly. Not sure why you're having this problem...
Nissan350 said:
I have that exact same case and all USB cables I have tried fit perfectly. Not sure why you're having this problem...
Click to expand...
Click to collapse
Some of the cases have square cut out and some are oval in the same packaging.
cx1 said:
Some of the cases have square cut out and some are oval in the same packaging.
Click to expand...
Click to collapse
Mine is oval, and while the plug goes in fine it does not seat flat to the phone. So it's up 1/16" and that could be enough for ot to wobble out if you touch the phone while charging.
I walk around the house with a short 8" USB cable and portable USB charger. Nokia has popped out a few times. Surround never did.
Sent from my Lumia 900 using Board Express
Ditto here. Same problem. USB stays secured enough though. I have a Samsung USB that's a little thinner and fits better more secure. Not completely a nuisance though.
I've received my universal Qi wireless receiver today. The receiver is smaller than I had thought and fits perfectly into the Moto G. Since our phone lacks internal preparation for Qi (like it can be found on the Samsung Note 2), the connection is made via a micro USB plug. The backdoor can still be clipped on without being disturbed by the Qi receiver pad or its flat band cable. Charging time should be about the about the same as charging the phone from a PC USB port that doesn't output more than 500mA.
This solution is obviously for those who don't need the phones usb port on a daily basis.
The adapter on the left picture (and in the video) is from ebay and is the one that arrived here first. I’ve changed the cable routing to remove the ugly bulge that was visible on my first picture. This adapter outputs a maximum of 500mA and can be purchased from ebay.
Make sure to purchase the "interface layout A, narrow interface up” variant.
http://www.ebay.com/itm/261348107126
17.Jan.2014 - The picture on the right shows an adapter purchased from DealExtreme, that arrived here yesterday. This adapter delivers up to 650mA and the flat band cable comes out of the lower side instead out of the backside which removes the need to bent over the cable.
http://dx.com/p/zy-408-wireless-charging-receiver-for-mobile-phone-micro-usb-black-259151
Both adapters work well, so don't worry if you've already bought the one I've first reviewed. (I have both version in use on different phones)
Here is a small video that shows me placing the receiver inside the Moto G:
http://www.youtube.com/watch?v=U2WPjw-WaCI
Update 13.02.2014
From my testing I can tell the following:
1. An unrooted Moto G needs to be screen locked (I use the pattern lock type) or it will refuse to charge due to the missing pins. You can unlock the screen while it is charging as long as you don't lift it from the qi charger. (tested on 4.3 and 4.4.2, DE and FR firmware)
2. Root in combination with dubidu's tool makes it more straightforward but is not required.
Shadow_2k said:
I've received my universal Qi wireless receiver today. The receiver is smaller than I had thought and fits perfectly into the Moto G. Since our phone doesn't support Qi in any way, the connection is made via a micro USB plug. The backdoor can still be clipped on without being disturbed by the Qi receiver pad or its flat band cable.
This solution is obviously for those who don't need the phones usb port on a daily basis.
Should you wish to buy an adapter for your Moto G, make sure to get the "narrow-interface up" variant
I've also made a short video:
Click to expand...
Click to collapse
Nice. Can you tell us where you got it from -- is it just one manufacturer making these?
Cheers.
I just bought it off amazon (hooray rewards card, it was free).
http://www.amazon.com/Universal-Wir...micro-USB/dp/B00H7FJX7M/ref=pd_rhf_gw_p_tnr_1
Theres a few on ebay if you just look up "Universal QI Wireless Charging Receiver film"
JCBomb said:
I just bought it off amazon (hooray rewards card, it was free).
Theres a few on ebay if you just look up "Universal QI Wireless Charging Receiver film"
Click to expand...
Click to collapse
Thanks. I had looked on fleaBay and it looks like they all have the same packaging. I imagine any qi wireless charger thingy should work. In theory.
anyone know if this would work through an otterbox case? or I guess if this would even work with one due to the fact the part that plugs in sticks out a little bit...
I've bought it here:
http://www.ebay.com/itm/261348107126
The auction uses the same pictures as used in the amazon offer posted by JCBomb, might even be the same seller.
This is cool! I just hope there's like another way we can integrate that wireless charger.
Just saw your post at android.hilfe and started looking for some charger, it's indeed a neat solution.
Universal QI Wireless Charging Receiver film for micro-USB of All Android Mobile (7,99 USD):
http://cgi.ebay.fr/ws/eBayISAPI.dll...eName=STRK:MEWAX:IT&_trksid=p3984.m1423.l2649
QI Wireless Charger Transmitter Charging Pad for Nokia Lumia 920 HTC 8X Nexus 4 (15,39 USD):
http://cgi.ebay.fr/ws/eBayISAPI.dll...eName=STRK:MEWAX:IT&_trksid=p3984.m1423.l2649
Are u guys using this wireless QI receiver? I'm going to buy one next month, D: . Just for curiosity, how much time do u guys spend to get a full charge with the QI
Guys i found this one at dx.com
http://dx.com/pt/p/micro-usb-qi-wireless-charging-back-clip-black-253066
Those kind of product are not so great are chaging, basically it's almost the same power that if you charge through uSB = 500mA.
What you need to check is the charging value, sometime it's :
- 400mA or less (avoid it, will take ages to charge),
- 500mA (just like your regular USB charger),
- 1000mA (great ones, will charge just like a wall charger, twice as fast as the previous model).
So the one at DX is great, but they're cheaper on ebay, plus you can choose between Black or White - http://cgi.ebay.fr/ws/eBayISAPI.dll...eName=STRK:MEWAX:IT&_trksid=p3984.m1423.l2649
This one was the cheapest (around £15) I could find and works fine.
http://forum.xda-developers.com/showthread.php?t=2601628
impressive
wow, so cool :good:
Am I the only one thinking about finding the plug they use with all the pins intact and integrating a micro sd card into it for OTG storage? Wireless charging and storage, all in one, and fitting under a case.
I had that exact thought about two hours ago. Throw NFC in their while your at it.
Sent from my XT1034 using XDA Premium 4 mobile app
I had actually started to do some verrrry preliminary research into something like it using a ribbon cable and another usb port, so you could plug the phone into a wall charger and have the usb/sd card piggybacked off the cable. Hadn't gotten very far though...job, kid, wife etc.......
Someone TAKE MY MONEY for it!! Especially since it seems we're all soon to be headed down the 'no sd card' path.
I just got a Moto G for my wife and Nokia Wireless Charging Plate DT900 is not working any ideas why ?
It's not working with one of the universal QI receivers? Have you try enabling the floating charging (see my post)
tomciopaluch357 said:
I just got a Moto G for my wife and Nokia Wireless Charging Plate DT900 is not working any ideas why ?
Click to expand...
Click to collapse
Yes, you also need receiver in your phone.
tomciopaluch357 said:
I just got a Moto G for my wife and Nokia Wireless Charging Plate DT900 is not working any ideas why ?
Click to expand...
Click to collapse
Hello.
The Moto G doesn't support Qi on its own, you'll need to rig it with an universal wireless Qi charging receiver.
You can buy them from ebay, dealextreme and some other china based stores. The first post contains a short installation video.
This one from dealextreme will work (Output up to 650mA):
http://dx.com/p/zy-408-wireless-charging-receiver-for-mobile-phone-micro-usb-black-259151
as well as this one from ebay (Output up to 500mA):
make sure to purchase "interface layout A, narrow interface up)
http://www.ebay.com/itm/261348107126
As we all know, the new Zenfone 2 is missing wireless charging capabilities, however there are multiple solutions to enable wireless charging on basically any phone.
Example is http://www.amazon.com/BEZALEL®-Wire..._1_4?s=wireless&ie=UTF8&qid=1432149451&sr=1-4
It is a cover with a Qi receiver built in, which connects to the charging port and it also provides an independent micro usb port as a part of the case.
The absence of wireless charging in Zenfone 2 is a deal breaker for me ( don't judge) and as soon as an appropriate case is available, I'll get it and the phone as well.
Please post your findings here.
Would love to use wireless charging but using a cover like the one posted is out of question.
I love the slim form and feel of this phone. so i will have to live without QI and other solutions.
This will occupy the mUSB port but would probably be the best current solution.
hkdmjack said:
This will occupy the mUSB port but would probably be the best current solution.
Click to expand...
Click to collapse
That's pretty cool. I like wireless charging because I'd rather not wear out my micro usb...but that setup kinda marries you to wireless charging all the time. I'd have to rig up wireless charging in the car and at work...not just at home. You use something like that?
nathan118 said:
That's pretty cool. I like wireless charging because I'd rather not wear out my micro usb...but that setup kinda marries you to wireless charging all the time. I'd have to rig up wireless charging in the car and at work...not just at home. You use something like that?
Click to expand...
Click to collapse
Not sure if I'm going to stick with the ZF2, so I haven't gone out and done all that yet but qi adapters are pretty cheap now for both home and car. How effective some of the car ones are though are another story. iOttie has two models out now that look promising for the car.
There may also be the possibility of placing those adapters into a separate case just meant for wireless charging... remove the case if you need the mUSB port.]
Or... if they do release new back covers... get one that you install the qi adapter in and then one that you won't have the qi adapter in.
WHYYYYYYYYY
Why did Asus decide not to include the qi pins in the back ((((((((((((((((((((((((((((((((((((((((((((
>_<
what to do :'(
Here's a teardown: http://www.myfixguide.com/manual/asus-zenfone-2-teardown/
You could solder the DigiYes posted earlier (http://www.amazon.com/gp/product/B00HI8JYFE) onto the usb board. Or you could probably just jam the wires into the connector for a non-permanent solution. The pictures of the DigiYes are a little conflicting, but if it does have leads for the data pins, you'd be best off omitting them (you'll be limited to 500ma qi charging).
This is of course assuming there's enough space to wedge the DigiYes between the back cover and phone.
ziddey said:
Here's a teardown: http://www.myfixguide.com/manual/asus-zenfone-2-teardown/
You could solder the DigiYes posted earlier (http://www.amazon.com/gp/product/B00HI8JYFE) onto the usb board. Or you could probably just jam the wires into the connector for a non-permanent solution. The pictures of the DigiYes are a little conflicting, but if it does have leads for the data pins, you'd be best off omitting them (you'll be limited to 500ma qi charging).
This is of course assuming there's enough space to wedge the DigiYes between the back cover and phone.
Click to expand...
Click to collapse
Which goes back to my point. Why did Asus purposdely omit to include QI/wireless charging pins on the back? It would had cost them hardly anything extra at all, and users could just have changed back cover to get wireless charging...
That one http://www.amazon.com/BLUBOON-Unive...2630&sr=8-2&keywords=qi+wireless+charger+1000 is 1000mA, if it does make a difference. But a case integrated receiver would be much better solution, if ever.
olegy said:
That one http://www.amazon.com/BLUBOON-Unive...2630&sr=8-2&keywords=qi+wireless+charger+1000 is 1000mA, if it does make a difference. But a case integrated receiver would be much better solution, if ever.
Click to expand...
Click to collapse
I bought that model. I have a Qi charger (used with a Nexus 5) hooked up to a 2A USB Adapter, and it barely charges the Zenfone. I do not recommend. Maybe a 2A receiver would work better.
It's ridiculous.... why did asus decide not to offer a wireless charging solution similar to the previous samsung galaxies/lg.
Have the pins for charging on the back, and let the user change the case to a qi receiver case or add a qi receiver pad inside. this is honestly the only thing that disappoints on this phone (((((((((((((
ziddey said:
Here's a teardown: http://www.myfixguide.com/manual/asus-zenfone-2-teardown/
You could solder the DigiYes posted earlier (http://www.amazon.com/gp/product/B00HI8JYFE) onto the usb board. Or you could probably just jam the wires into the connector for a non-permanent solution. The pictures of the DigiYes are a little conflicting, but if it does have leads for the data pins, you'd be best off omitting them (you'll be limited to 500ma qi charging).
This is of course assuming there's enough space to wedge the DigiYes between the back cover and phone.
Click to expand...
Click to collapse
I just received mine and there is enough space in the back cover for the receiver to fit in, albeit with a small bulge. It does show my phone as charging even when just held up to my Moto 360 cradle; whether or not it's charging, however, I have no idea.
raynan said:
I just received mine and there is enough space in the back cover for the receiver to fit in, albeit with a small bulge. It does show my phone as charging even when just held up to my Moto 360 cradle; whether or not it's charging, however, I have no idea.
Click to expand...
Click to collapse
Thanks for trying. Did you actually solder or just plug it in the usb port? If you plugged it in the usb port, does the cover close without damaging the cable?
I'm asking because if that works, we could potentially design a slightly thicker but hollow back case that could hold NFC and the wireless receive without unnatural bulges.
ameel said:
Thanks for trying. Did you actually solder or just plug it in the usb port? If you plugged it in the usb port, does the cover close without damaging the cable?
I'm asking because if that works, we could potentially design a slightly thicker but hollow back case that could hold NFC and the wireless receive without unnatural bulges.
Click to expand...
Click to collapse
It closes fine but there is a bulge and the cover is left slightly open.
Here's my solution. Doesn't look good but functional.
don't judge
Click to expand...
Click to collapse
Yeah I judge, wireless charging its just another feature. A small battery, a slow processor or low memory now that's a real deal-breaker since your phone wont last a day, apps will run like hell and you will always have to micromanage just for things to run properly.
I'm way more pissed off at this phone not having a removable battery, not just because its a real deal-breaker during travel where I will be forced to lug around one of those brickish power banks but because Li-ION batteries have the lifespan of a mosquito. I already had 2 phones like that and the result was always a massive pain in the ass to deal with.
I rather buy a case with an extra battery than this thing
Three pins USB Board?
Hi there
Maybe some one knows, what are those three pins on the USB board, that are accessible without disassembly phone?? That should be connectors to charging instead of usb socket?
I have a qi charger built into my car. I do not like aftermarket charger added to the phone. So this is a deal breaker for me and will not consider any phones without buildin qi charger.
Looking to buy this phone and own a quick charging card like this. Is it possible to slip the card under the back cover (without a case) or will it cause it to bulge in too unsightly a manner?
dud89 said:
It closes fine but there is a bulge and the cover is left slightly open.
Here's my solution. Doesn't look good but functional.
Click to expand...
Click to collapse
Slooop said:
Looking to buy this phone and own a quick charging card like this. Is it possible to slip the card under the back cover (without a case) or will it cause it to bulge in too unsightly a manner?
Click to expand...
Click to collapse
It can but causes a gap near the usb port that I could not close. I would've run it inside if it didn't do that.
dud89 said:
It closes fine but there is a bulge and the cover is left slightly open.
Here's my solution. Doesn't look good but functional.
Click to expand...
Click to collapse
Great Idea.
The speed of charge is 350 MAH ?? Is to slowly (USB PC charge normally 550 MAH)
I want to buy a magnetic charger and I live in India and very low quality cables are available on the local websites. I have looked for cables on eBay.com which ship to my location but I don't know which one to buy. I need your opinions. My maximum budget is 12$(incl. shipping).
The WSKEN Cable is available at my location. Is the cable worth buying?
Thanks in advance.
I got wsken magnetic cable, and its build quality is fine, but magnet is not that strong - its even weaker than another fake original sony cable i got. But if you just use it to charge your phone without using it, it can do the job.
I wouldnt recommend one with a very strong magnet. There have been some horror stories of the storng magnet PULLING the phones charge port completely out. I got a fairly weak one from amazon.
http://www.amazon.com/gp/product/B00UOVZOBK?psc=1&redirect=true&ref_=oh_aui_detailpage_o00_s00
Fits perfectly with my Cruzerlite TPU case. I even have EXTRA room for clearance. Magnet isnt the strongest which makes me happy as I only charge at night when I'm sleeping as the phone lasts through the day for me.
Yup, it happened to me. I use a Magnector adaptor and it is very strong, after a while the whole connector came off as there was simply a VERY thin acrylic glue foam tape (VHB ?) holding it and keeping water off. By thin I do not mean the thickness but the actual long side surface
The good news is that the connection with the internal PCB board are spring loaded, so I put it back in place and tested it then used a needle to put some cyanoacrlylate glue to hold it, it never came out again and the phone still look ok. Now I always try to removing it with a twisting motion just in case...
It is hard for me to understand how they can claim waterproof and use such thin gasket but I still like this phone a lot!
hmm dont think I'll be getting a magnetic charger any time soon then if it comes off that easily. >_<
It's just the Magnector adapter that seems to do that. None of the others are strong enough to pull the connector off of the phone.
I just bought an OEM one from aliexpress for only $2.71 US. btw you only save .03 if you use the mobile app
http://www.aliexpress.com/store/pro...a-Z1-Charger-Adapter/1775016_32429292298.html
I also have a generic magnetic charger. The one with a circle blue LED in the part near the magnet. I found that it charges slowly compared to the OEM usb cable that came in the box. I used the same OEM charger for both tests.
Charging via magnetic cable is roughly 60-70% of the speed of normal USB charging. Is this just me that I have a low quality cable or is it really that much slower?
I tried two Magnetic cables but they don't work on my Z3 Compact because pins are not aligned with phone and charging not working probably because there is no contact. Actually i got one with LED indicator to work several times but on slightly move it stops charging and it is hard to get it to charge again so I gave up on these cables.
I bought original Sony DK48 Dock and it's working out of the box. Only issue is that I need to remove protective case before charging because with it phone won't fit in Dock. It almost fits so I'll probably try to modify larger adapter so phone can fit with case...
I received my DK48 dock and magnetic cable from Ali Express and they both work great. The charging cable ($2.71) matches the pins perfectly so doesn't appear to be a knock-off. I have a Devilcase bumper and works with the DK48 dock also with the case on--just attach the included back rest. It takes me a few times to get it aligned perfectly to charge but works.
I'm using this cheap one and it works great for me. Magnet is ok so you can even move your phone as long as the cable is parallel to your phone.
http://www.ebay.com/itm/Magnetic-Ch...39h-KK-/261850771916?var=&hash=item3cf785b1cc
I'm have WSKEN X-cable Easy Version, and it's great.
You can also try WSKEN X-CABLE DOUBLE METAL which has a charge indicator led.
Both cables charge my device faster than original Xperia Z2 charger and magnet is not too weak/too powerful.
Check WSKEN website for details.
I've tried several magnetic chargers and adapters and always facing the same problem, too weak magnet and if the phone is moved even an inch the cable falls off. Finally I got WSKEN X-CABLE for 7$ and that did the trick, everything works great including fast charging. You can literally hold your phone up in the air by the charger. And no, the magnet is not too strong as described in previous posts, with a slight pull it comes off without breaking the phones charging port. There is even a little plastic widget included to attach the cable into the right position angle and you can perfectly use the phone while charging. Link: http://www.ebay.com/itm/112026597308?_trksid=p2057872.m2749.l2649&ssPageName=STRK:MEBIDX:IT
Whether it be an internal wireless receiver or external usb c receiver. Most external usb c receivers are at the minimum 3.9" tall which seems to be the issue.
You can, but...
macklobell said:
Whether it be an internal wireless receiver or external usb c receiver. Most external usb c receivers are at the minimum 3.9" tall which seems to be the issue.
Click to expand...
Click to collapse
You can get an Ultra Thin USB-C Qi Wireless Charging Adapter, and you could install it on the phone and keep it hidden and in place by getting a Razr phone case. I plugs into the USB-C charging port and the thin flat ribbon cable has a 90 degree bend to it. I used this coil adapter before on a convention smartphone years back, the only drawback is that your USB-C on the phone will be occupied by the coil. Wireless charging is slower than traditional USB-C charging.
Cheers,
LormaD said:
You can get an Ultra Thin USB-C Qi Wireless Charging Adapter, and you could install it on the phone and keep it hidden and in place by getting a Razr phone case. I plugs into the USB-C charging port and the thin flat ribbon cable has a 90 degree bend to it. I used this coil adapter before on a convention smartphone years back, the only drawback is that your USB-C on the phone will be occupied by the coil. Wireless charging is slower than traditional USB-C charging.
Cheers,
Click to expand...
Click to collapse
I'm aware of that but the issue is most of these are at least 4" in height which would cover the fingerprint sensor.
Find the shortest version, and if need be you can cut it to streamline it.
The ribbon cable has some flex to it, and if you use a heat gun you can bend the flex cable like an accordion to reduce length. You could also diminish the height of the coil pack by cutting it. Since the phone has a glass back, and your "sandwiching" it with a case, there is no fear of creating a short when charging.
LormaD said:
Find the shortest version, and if need be you can cut it to streamline it.
The ribbon cable has some flex to it, and if you use a heat gun you can bend the flex cable like an accordion to reduce length. You could also diminish the height of the coil pack by cutting it. Since the phone has a glass back, and your "sandwiching" it with a case, there is no fear of creating a short when charging.
Click to expand...
Click to collapse
Wouldn't cutting it cause it to malfunction? Also, do you mean use a heat gun to fold it in half? Do you have illustrations?
I think he meant to cut the edge to make the fingerprint reader completely clear, but not to cut too much to avoid the coil, and I'm assuming he meant to fold the cable in half.
Another point besides the charging speed is the heat that the coil produces.
Yoni160 said:
I think he meant to cut the edge to make the fingerprint reader completely clear, but not to cut too much to avoid the coil, and I'm assuming he meant to fold the cable in half.
Another point besides the charging speed is the heat that the coil produces.
Click to expand...
Click to collapse
Just a few questions. Where can the wireless adapter in this picture be purchased (link)? It looks like the usb dongle is too long to fit properly on the phone since the adapter is shifted below the fingerprint sensor. Does this wireless adapter work good on the device without overheating?
https://forum.xda-developers.com/conversations/wireless-charging.14057755/#convMessage-14061257
Yoni160 said:
https://forum.xda-developers.com/conversations/wireless-charging.14057755/#convMessage-14061257
Click to expand...
Click to collapse
Link does not open... Please supply some info to find it
I see this for Barbuda nut only comes with lightning connector... would need USB-C ＆ only 5v so... I would still buy one at that folds its level because I don't really care if it's fast charges because I leave the thing on the stand overnight and it may actually be better for the battery to slow charge.
I played around with this as well. I was able to trim the one I'll link below to the right size. The key is to not cut the coil, the rest seems like it can be cut without a problem. In the end I didn't like not having access to the USB-C port. But it was a fun pandemic project.
QI Receiver Type C (2pcs) for Google Pixel 3a - 2-2XL - XL - LG V20 - LG G5 - LG Stylo - Nexus 6P - OnePlus 3-5 - Qi Wireless Receiver - Type C Wireless Charging Receiver Adapter : Cell Phones & Accessories
QI Receiver Type C (2pcs) for Google Pixel 3a - 2-2XL - XL - LG V20 - LG G5 - LG Stylo - Nexus 6P - OnePlus 3-5 - Qi Wireless Receiver - Type C Wireless Charging Receiver Adapter : Cell Phones & Accessories
www.amazon.com
As for the one I cited above with lightning connector... maybe someone here knows how to suggest they make one for USB-C ??
https://www.aliexpress.com/item/1005003735352888.html
I'm a little late to the party here, you can solder in a wireless coil to the inside of the phone. The best coil I could find is this 7.5W (5V 1.5A) coil. There's a 10W (9V) option, but it would require addition circuitry to use in a phone.
The external plug-in solution is by far the easiest option, but it has too many flaws: blocks usb port, protrudes too much, fragile- must be kept inside a cover to protect it, most put out 2.5-5W, and it looks horrible.
Heres the link for the internal coil. If its unavailable at the time of reading this, on aliexpress, search for "7.5w wireless coil".
https://www.aliexpress.com/item/1005004119996834.html
And here's a youtube link showing installation. You can skip half of it. aim is to tap it to the ribbon carrying the charging from the usb.
It does require some understanding of basic circuitry and soldering... not for everyone.
Ive just bought the new Razr 2022, and will be installing it on that.
Just keep in mind that the RAZR has two batteries, and getting it apart isn't for the faint of heart.
It's also one thing to get apart, and another thing getting it back together..
Just advice, but definitely watch anything you can get your hands on before tackling, and good luck.