replacement w.fl (aka ipex mhf3) connector? - Nexus One Q&A, Help & Troubleshooting

OK, so please help me I'm going mad here!
I took my nexus one apart to replace the microusb port, which was totally crapped out. After putting the device back together i get very low WIFI signal although everything else is working. I took the phone apart and one of the mini pigtail connectors was unplugged and possibly a bit squished. I put it back on and it seemed fine. When i turned the device on the result was the same... Wifi works, but only short range.
This leads me to think the Coax w.fl connector is broken or possibly i damaged the WIFI antenna foil (it is somewhat deformed).
The w.fl connector is like the connector that connects the wifi aerial in your laptop, only smaller, if that helps.
I'd love it if someone could point me to a cheap antenna assembly or just the coax cable.
Even better if someone know of a device where this is sold as a complete part (antenna and coax) i could mount it behind the battery cover and possibly increase my signal!
This lack of wifi is such a pain as i live in a low signal area and rely on wifi for data/sync.
Thanks!

You can buy a 100cm coax cable terminated with W.FL connectors from RadioSpares in the UK stock number 619-6387

Related

Charging fault?

For a few days my phone hasn't been charging, and at first I thought it was a problem with the battery, but having bought a new one I've realised that when I tilted the charger to the left it would charge, but when it's just left it wouldn't, so I guess a bit of a miss-alignment.
Anyone got any ideas how I can fix this problem?
Cheers, nathaniel
try another cable and make sure it's the one that came with the phone. you should have a usb one and a ac adapter. if both are like that then you need to warranty it out.
Yeah, Ive tried it with the USB cable and the charger, I got the same result. Is there no quick fix, I'm going abroad in 9 days and quite need my phone...
There are a few discussions on bad USB connectors in these forums -- searching might provide some things to try.
From what I can remember, it's possible the pins in the connector (on the phone side) might be bent out of place -- you might want to inspect them with a magnifying glass and try to carefully bend them back if any seem out of place.
It's also possible that the connector itself is broken -- in which case you're looking at a service call.
this seems like the problem i faced. i was also facing the same problem and i read the forums here and found it as a usb port issue. so i slightly bent the usb port so that the contacts are aligned and then it started charging
Hey I would also recommend trying a new a new charger again because I have had my share of faulty chargers. Last time I had a problem charging was with a brand new cable that did not work right at the box from At&T and thought it was my battery until i tried another charger that worked. I would suggest trying the charger that is not working on another phone and see if its actually the charger or if it is your phone that is not working.
burtcom said:
There are a few discussions on bad USB connectors in these forums -- searching might provide some things to try.
From what I can remember, it's possible the pins in the connector (on the phone side) might be bent out of place -- you might want to inspect them with a magnifying glass and try to carefully bend them back if any seem out of place.
It's also possible that the connector itself is broken -- in which case you're looking at a service call.
Click to expand...
Click to collapse
I think it is to do with the pins in the connector.
I had a search but I'm not very good on forums and I can't find anything of any use. Does anyone have a link?
Just look at the last few pages of topics, you should find something... there are threads about broken USB at least once a week.
One common conclusion is to avoid using USB cables other than the supplied one as their
plugs are a little thicker and tend to deform the phone's plug over time (I admit I always use others though, and as a result do sometimes need to wiggle the cable a tad and not move anything anymore once the connection is established... ).
I once dismounted my Hermes and tightened the plug back a bit, it helped, I've never done it with my Kaiser yet though. If you're not used to dismantling and fixing devices I'd recommend returning it for repair indeed.
I had a the opposite happen, it would charge but no data connection with my pc. If you look at your extUSB port on your phone, see if the black plastic tab is cracked (which was my case) or if the pins are shifted. whatever the issue, its obviously hardware related, take it to an At&t service center tell them whats wrong and if your in warranty they'll change it on the spot.
gonzo8898 said:
Hey I would also recommend trying a new a new charger again because I have had my share of faulty chargers. Last time I had a problem charging was with a brand new cable that did not work right at the box from At&T and thought it was my battery until i tried another charger that worked. I would suggest trying the charger that is not working on another phone and see if its actually the charger or if it is your phone that is not working.
Click to expand...
Click to collapse
He got the same result using his USB cable so that would rule out the charger.
fone_fanatic said:
I had a the opposite happen, it would charge but no data connection with my pc. If you look at your extUSB port on your phone, see if the black plastic tab is cracked (which was my case) or if the pins are shifted. whatever the issue, its obviously hardware related, take it to an At&t service center tell them whats wrong and if your in warranty they'll change it on the spot.
He got the same result using his USB cable so that would rule out the charger.
Click to expand...
Click to collapse
Im in England, took it to the T-Mobile shop, the service was rubish and without even looking at it they send I should send it off which would take 2 weeks. There is a crack in the black plastic tab

Recharging Options

How are you guys recharging your HD2's? I've been relying on the USB connector at the bottom of the phone, but my concern is that after 'x' number of connects/disconnects that the socket will wear out as it started doing with my Kaiser.
Do you guys know of any pin-based adapter or battery hatch modification with external contacts that would enable us to lay the phone on a stand or platform without having to use the internal USB port on the phone which will eventually wear out? The 'powermat' would be great, but it's not available for the HD2. Does the new HTC car mount recharge the phone too, or is it just a bracket?
I'm thinking of something along the lines of how bluetooth headsets recharge, where the pins are external. It just worries me that the micro USB connector will eventually fail, which on a $700+ phone is not an attractive option.
Your thoughts?
The connector will not fail. At least unless you force/damage it yourself. It has been adopted as a connection/charge connector on ALL new phones now, of any brand, so you can bet they tested it thoroughly before.
If it fails.. well that's what the warranty's there for.
To answer the original question, I charge using USB, and also an external charger for my spares.
kilrah said:
The connector will not fail.
Click to expand...
Click to collapse
I understand your point, but to my way of thinking it's still a physical connector made of metal and plastic. It will fail eventually, trust me. These connectors are tested to withstand a reasonable number of connect/disconnect cycles for the average user. But cell phones tend to get used more, and this phone among other cell phones because of the cpu and screen will need to be recharged even more so.
Also, I'm not talking about the point of failure, but the limit of usability. The connector on my Kaiser got to the point where the cable wouldn't stay lodged in the housing and would drop out of its own weight. Although it still worked, it made for awkward handling while in the car trying to use a coiled charging cable that would drop out on its own.
So what I was looking for was a replacement battery hatch which would connect with the internal contacts, and a corresponding mount/dock of some sort so that it would minimize the physical stress of multiple connections and disconnections.
BillTheCat said:
How are you guys recharging your HD2's? I've been relying on the USB connector at the bottom of the phone, but my concern is that after 'x' number of connects/disconnects that the socket will wear out as it started doing with my Kaiser.
Do you guys know of any pin-based adapter or battery hatch modification with external contacts that would enable us to lay the phone on a stand or platform without having to use the internal USB port on the phone which will eventually wear out? The 'powermat' would be great, but it's not available for the HD2. Does the new HTC car mount recharge the phone too, or is it just a bracket?
I'm thinking of something along the lines of how bluetooth headsets recharge, where the pins are external. It just worries me that the micro USB connector will eventually fail, which on a $700+ phone is not an attractive option.
Your thoughts?
Click to expand...
Click to collapse
I just got the car mount today. It Does recharge the phone - there's a mini usb plug built into the bracket, and a lead plugs into the base of the bracket, and then into your 12v socket. A nice touch, the lead is actually long enough to be able to route it nicely.
ebeam said:
I just got the car mount today. It Does recharge the phone - there's a mini usb plug built into the bracket, and a lead plugs into the base of the bracket, and then into your 12v socket. A nice touch, the lead is actually long enough to be able to route it nicely.
Click to expand...
Click to collapse
Thanks, but what I was really after is a solution that does NOT involve the USB port on the phone.
I've seen battery chargers on Ebay. That's probably the only sensible solution if you're really that worried about the USB connector...
I think I remember reading something about some sort of wireless recharging pad that you can put phones and mp3 players on that would recharge them without any cables but I've got no idea if it would work on the HD2 or if they are even on sale yet.
There was old HTC CU S400 car Update Kit. It has direct conection to the battery throug back cover http://www.slashgear.com/htc-hd2-cu-s400-car-kit-gets-priced-detailed-coming-december-1360143/#entrycontent. New mount have MicroUSB connection http://www.clove.co.uk/viewProduct.aspx?product=53E28901-63DD-4E93-99F6-BF3D0B88BD04
lachutm said:
There was old HTC CU S400 car Update Kit. It has direct conection to the battery throug back cover http://www.slashgear.com/htc-hd2-cu-s400-car-kit-gets-priced-detailed-coming-december-1360143/#entrycontent. New mount have MicroUSB connection http://www.clove.co.uk/viewProduct.aspx?product=53E28901-63DD-4E93-99F6-BF3D0B88BD04
Click to expand...
Click to collapse
Yes, the former is along the lines of what I had in mind. Just surprised that no aftermarket solutions have been developed for the phone to make it easier to charge without wearing out that micro-usb connector.
As the mini USB port is a standard size, (not just used by HTC) if you should ever 'break it', most phone repair shops will be able to replace it quite easily.
A lot less hassle than opening up your phone to plug things in the back.

[Q] Could I short out my internal antenna?

So, last night I wanted to try a passive antenna on my cappy because I get no signal at work. I was at home where I get 2 to 3 bars average. I popped the rubber plug out and carefully inserted the connector. I noticed no difference at all. I unplugged it and tried a second passive antenna that had no connector just bare wires so I inserted the center wire into the external antenna hole and again saw no noticeable difference so I pulled it out and set the phone down to take care of my mess. When I came back to it I noticed that I had no service at all. Now I have to be right next to a tower to even get 1 or 2 bars.
How could I have messed up the internal antenna just by using the external to test a passive antenna? Is there anything close to the internal antenna or the external connector that I could have touched with the bare wire that could have ruined my internal antenna?
Short answer yes and no. However without the correct adapter you can damage it and basically disconnect the internal antenna. Read this thread:
http://forum.xda-developers.com/showthread.php?t=1011223

[Q] Wifi & Bluetooth Dead after drop in water

So like an idiot I dropped my phone in the sink, the top side (where the audio jack and USB charging port are located) got the brunt of the water on it. I took the battery out immediately, let it dry out, tried starting it and it would boot and get a signal (while making a loud screeching noise), then lose signal and start getting really hot. It also wouldn't charge via USB. I took it completely apart and cleaned the circuit boards with PCB cleaner, there were a couple of spots where the corrosion had started that was barely visible with the naked eye, but very evident through a 60x magnifier.
Once that was cleaned up I let it dry out again, booted it up and it's working perfectly now with the exception of the Wifi and Bluetooth. When I try to turn either one on it just says "Turning wifi/bluetooth on" but it never starts up. I'm assuming that the circuit and/or antenna that controls both of those functions is either corroded or fried. My question is, does anyone know whether the antenna or circuit board for wifi/bluetooth is replaceable, and/or does anyone have a map of the circuit boards that would direct me on where to look for corrosion?
jdgilbert said:
So like an idiot I dropped my phone in the sink, the top side (where the audio jack and USB charging port are located) got the brunt of the water on it. I took the battery out immediately, let it dry out, tried starting it and it would boot and get a signal (while making a loud screeching noise), then lose signal and start getting really hot. It also wouldn't charge via USB. I took it completely apart and cleaned the circuit boards with PCB cleaner, there were a couple of spots where the corrosion had started that was barely visible with the naked eye, but very evident through a 60x magnifier.
Once that was cleaned up I let it dry out again, booted it up and it's working perfectly now with the exception of the Wifi and Bluetooth. When I try to turn either one on it just says "Turning wifi/bluetooth on" but it never starts up. I'm assuming that the circuit and/or antenna that controls both of those functions is either corroded or fried. My question is, does anyone know whether the antenna or circuit board for wifi/bluetooth is replaceable, and/or does anyone have a map of the circuit boards that would direct me on where to look for corrosion?
Click to expand...
Click to collapse
I believe they are on the main board, which is a significantly trickier replacement. If not, you could always get a used captivate for cheap (one with screen broken or something like that) and switch out the boards

Teclast X98 plus II (c2e3) disassembly

I just got this tablet but I am having hard time finding any info about it.
It has 2GB ram and came only with Android (no dual os).
Any idea where can I learn more about it?(upgrade Bios, install dual OS, etc)
Specs
CPU: x5 Z8300
RAM: 2GB RAM
Storage: 32GB eMMC
model code: c2e3
Hardware name: cht_cr_mrd
build: V1.04_20160624
Android: 5.1.1 ( kernel 3.14.37)
wifi+bt chip: Realtek RTL8723bs (driver: 8723BS.ko)
Touch controller: Silead GSL3692
Audio Dac: ES8316
Case Images:
Software CPU-X:
Software CPU-Z:
Hardware Internals:
Bios:
To enter in Bios:
- connect a usb keyboard on the OTG usb port
- shutdown the tablet
- power up tablet - keep the power button 2 seconds pressed and release it.
- press repeatedly the ESC key until it enters BIOS.
I also opened up my tablet, C2D4, because of very poor internet connectivity, I noticed how antenna is soldered and I am guessing that there is a short in my case, so I will solder two separate cables instead of one and see how it goes...
Do you have any troubles with WIFI signal?
hello I bought this tablet I have a big problem. When I put any sdcard, I have always as volum 0.90 go. The sd with windos is no problem. Do you know how I can fix this problem please? Thanks for advance
veaceslav said:
I also opened up my tablet, C2D4, because of very poor internet connectivity, I noticed how antenna is soldered and I am guessing that there is a short in my case, so I will solder two separate cables instead of one and see how it goes...
Do you have any troubles with WIFI signal?
Click to expand...
Click to collapse
Yes the WiFi is a joke, although the signal looks good 3/4bars or 4/4bars the latency is huge > 800ms, packet loss and the bw is under 100kbps if I am not in the same room with the wifi-router. In the same room I get even 70mbps.
Regarding your mod, check first with a multimeter if there is indeed a short. I would not recommend using two separate wires to connect the PCB antenna you must use a coax cable for this since unshielded wire acts as a antenna themselve.
You could try soldering a 31.25mm(starting from the solder joint) non-shielded wire on the pad marked with + sign. In my case I saw around 10% improvement with this mod.
lupu said:
Yes the WiFi is a joke, although the signal looks good 3/4bars or 4/4bars the latency is huge > 800ms, packet loss and the bw is under 100kbps if I am not in the same room with the wifi-router. In the same room I get even 70mbps.
Regarding your mod, check first with a multimeter if there is indeed a short. I would not recommend using two separate wires to connect the PCB antenna you must use a coax cable for this since unshielded wire acts as a antenna themselve.
You could try soldering a 31.25mm(starting from the solder joint) non-shielded wire on the pad marked with + sign. In my case I saw around 10% improvement with this mod.
Click to expand...
Click to collapse
I will try to make a improvised coaxial with Ethernet cable and aluminium foil wrap... I do not have a multimeter..
So, after long tries of improving the Wi-Fi I am giving up. The speed of 22Mbps I achieved with the cover of, I can't make it when the cover is on. The damn plate is too thick and is killing all signal. I even soldered a wire to the plate. It didn't improve or worsen the signal. I put a wire with a razor blade wrapped in the plastic area and got a small improved.
I get at least some stable 5 Mbps when I used to get almost nothing. If I crack open a little bit the case, suddenly the speed is twice as fast.
Props to the Teclast guys, at least there was no short in antenna soldering. I wish I had a full plastic cover
Update: since I noticed that WiFi is better with the case open, I decided to get the antenna out. Not all of it, just the tip.
The antenna is glued with strong adhesive, but then it fits strong on the screen.
For me, I got a good improvement in speeds when the router is away.
Since Realtek chip is kinda bad, don't expect miracles. My phone with ac chip is still faster, even in N band.

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