External GSM antenna damaged - Tilt, TyTN II, MDA Vario III General

Ok so I'm stupid.
Whilst trying to boost 3g reception and having plugged an external antenna into my gsm external port (the one on the left). I have damaged my kaiser. Now when I remove the external antenna the internal antenna no longer works. I get no reception whatsoever.
I presume there is some sort of physical switch in the port which has been damaged by plugging in the external antenna.
Do any of you guys know about this and if it can be fixed (say by soldering the port)? Any help (other than insisting that the phone will just have to be replaced) appreciated.

bump up - please help

Not a total loss
Looking at pg 92 of the Kaiser service manual, I see there is just the earth connection on the pcb either side of the connector and a single track down the middle so I cant see how there would be an isolator switch built in. Theres nothing about using the RF connector in the user manual (only the GPS connector) and plugging in an external RF antenna, as well as requiring the correct part (and I don't know if this connector is for an antenna or just testing purposes), would require removal of the battery cover. I think you may have damaged the RF circuitry/receiver. Have you tried removing the battery for a few minutes, attempting to power up the device (to remove any residual charge), performing a hard reset and trying again in different locations (assuming you haven't changed anything since it was last working fine)?
I don't think the phone would need to be replaced but it may require some components to be replaced by a service centre that knows the device well if none of the above makes any difference.

Flying Kiwi said:
Looking at pg 92 of the Kaiser service manual, I see there is just the earth connection on the pcb either side of the connector and a single track down the middle so I cant see how there would be an isolator switch built in. Theres nothing about using the RF connector in the user manual (only the GPS connector) and plugging in an external RF antenna, as well as requiring the correct part (and I don't know if this connector is for an antenna or just testing purposes), would require removal of the battery cover. I think you may have damaged the RF circuitry/receiver. Have you tried removing the battery for a few minutes, attempting to power up the device (to remove any residual charge), performing a hard reset and trying again in different locations (assuming you haven't changed anything since it was last working fine)?
I don't think the phone would need to be replaced but it may require some components to be replaced by a service centre that knows the device well if none of the above makes any difference.
Click to expand...
Click to collapse
Thanks for your comments. I have removed the battery but I have not tried a hard reset. I'm out in africa at the moment and can't deal with the other problems this would cause.
Right now I have temporarily fixed it by bending a paper clip and putting it in the port with the rest fitting snug under the cover. The reception is surprisingly good.

If the temporary fix works....
knmwt15000 said:
Right now I have temporarily fixed it by bending a paper clip and putting it in the port with the rest fitting snug under the cover. The reception is surprisingly good.
Click to expand...
Click to collapse
Sounds like the mark one 'coathanger car aerial' that was popular in New Zealand many years ago

Related

[Reception mod] How to get great signal with your kaiser/tilt/tytn/vario

Ok guys, i just got my tilt about 3 weeks ago from a friend and was disappointed by the horrible reception it got. I tried everything i could find, different spl, pretty much every radio released even 1.65.30 X_X, but nothing improved reception. I had pretty much given all hope of using the phone since i only had 1 bar of reception where i lived until i decided to take off the cover. I noticed 2 connectors in the back of the device and some quick goggling showed that they were external antenna ports. So i thought what if i stuck a pin in there? what'd know once i stuck a pin the gps external antenna connector the gps signal jumped through the roof...than i tried the other port to the left and what'd know? my signal went from 1 bar to a solid 4 bars. I thought maybe this was caused by me holding the pin so i bent the pin enough so that it can be pushed into the connector yet lean on the case and added a bit of tape. To my surprise the increase in signal strength stayed! I decided to test out my little mod to make sure the increase in strength wasn't just cosmetic. I took my phone on the train with me (I live in nyc) 4 bars through the train ride. I made a call on the way back and i was able to have a Cristal clear conversation something i was not able to do before. The reception i get now is pretty much solid anywhere i go no matter which radio i use, 4 bars all the time even with 3G..
To sum it up:
1) get a pin, you'll see 2 connectors near the camera, stick the pin in and observe your signal jump from 1-3bars to a solid 4 bars.
2) bend the pin so that it still makes contect with the connector yet is flush with the phone so that the cover will somewhat close.
It seems our devices have pretty crappy internal antennas if sticking a small pin in the external antenna connector can give such a huge jump in signal strength.
Right now i haven't been able to get the cover to close completely. Maybe someone can find something that works better than a pin while allowing the cover to close properly?
Well, tried out with my Vario what you did. And now I don´t get it work with internal antenna again.
So right now I have no signal without a pin in the external antenna connection. With one I do.
Anyone there who knows if the internal one is just deactivated or if broke something when i softly put the pin in the connector?
How can I reactivate the internal antenna?
I highly doubt you broke anything. what radio are you using? try 1.70.19.09. Did you try a soft reset? I just don't see how activating the external antenna port would cause the internal one to completely stop working. I had this mod working for about 2 weeks before i posted it. I put the pin in multiple times carelessly even and never had problems.
Found this:
forum.xda-developers.com/showthread.php?t=356460
That´s my problem. I work with WM Smartphones now since 5 years and do flashing and expermiments all the time. So I think I´m right when I say, that I broke my phone with the pin i used. Damn thing.
Of course I will try to fix it, but maybe that fault will be the reason for an upgrade to touch pro (II). We will see.
Any ideas of solution are highly welcome.
I tried other Radios and made a Hardreset without success.
Greetz
Cutter
The problem with what you have done is that you opened a rarely opened contact. The pin goes in and splits a connector apart, and when you pull the pin out, the connector doesn't make good contact. You have to make the contacts clean. I would suggest using a pin that has been mildly roughed up some how (maybe sanding side to side on the shaft of the pin to create grooves) and then use contact cleaner to wash and clean the contacts. Or, just put the pin in, and cut it off flush (or near flush) with the top of the connector.
This has been discussed elsewhere on the board, but I do not recall where right now.
It is not a software/firmware problem - it is just a mechanical failure.

[Q] No Signal at all after replace the housing

After the replacing of my X1's housing with the new one in the SE Service center I went home gladly with my new X1 housing. I noticed there's an error in signal in my X1 when I was checking my phone at the SE center.. But I thought it was maybe due to poor reception thus I neglected it. (the officer in the SESC say so)
Now I know that there's some new problem arise.. Any idea what might cause this error? the phone can read the Sim card but there is no signal (no connection, no call or no data can be made). i try to check the antenna module, but it seem to be OK (i did not see any problem on it).
the next day i came to the SE center, they said it might be something wrong with the software (since i am used using cooked rom) how come it can make any different while i'm using it before i replace the housing. and they have to take it into the HQ. and guess what, it may take another 6-7 week... WTF
is there anyone having the same problem with me?
Well if you have the tools, you can try openingu p the bottom cover, that little rubber thing where it has the mini sony ericsson logo. Open that rubber up, and you should see a mini screw in the middle, open that up take it out, maybe just give it a quick clean, fit it back properly, and make sure everything is tight and see how that works out.
I've seen/heard a few people having such issue when taking the housing off, and not placing that radio/reception thingy back properly, therefore causing issues with reception.
briian_ said:
Well if you have the tools, you can try openingu p the bottom cover, that little rubber thing where it has the mini sony ericsson logo. Open that rubber up, and you should see a mini screw in the middle, open that up take it out, maybe just give it a quick clean, fit it back properly, and make sure everything is tight and see how that works out.
I've seen/heard a few people having such issue when taking the housing off, and not placing that radio/reception thingy back properly, therefore causing issues with reception.
Click to expand...
Click to collapse
I did it twice, just to make it sure that everything was on their place, also try to flash the ROM, The Radio but still remain the same....
any other suggestion or idea what should I do?
Same problem!
I had disassembled my phone by myself twice; the first time it worked perfectly, the second, unfortunately, it didn't!
I bought a new antenna module for U.S. $10, installed it myself (warranty ended three months ago), walked out of the service centre and voila; I had reception and managed to make a few calls. However, on the way back home, all calls placed while driving dropped every 5km, which means the hand-over between cell towers was failing. The moment I walked home it was dead; no reception whatsoever indoors.
Now the way I see it, this could be due to one of the following two reasons: either the RF power amp failed, which means that most probably the phone needs a new main board (too expensive, not worth it) or something went wrong during the assembly, like the smearing of a sensitive part by skin oil (thus causing a short circuit) or failure to position a connector or multiple ones to connect properly to their respective terminals/connection points.
Upon further investigation, I noticed that my phone wasn't properly grounded; whenever I connected it to a computer to sync using ActivSync or in disk drive mode, I got a small electrical shock (painful though) whenever I touched the phone. This, however, doesn't occur at all when I connect the phone to the wall charger. I disabled USB charging since day 1 of owning my X1i
I believe that the battery cover acts as a ground for the phone electronics; it touches four golden connectors which in turn touch the mini USB port, the GPS/Wi-Fi/Bluetooth antenna, a point on the main board half an inch away from where the loudspeaker is, and the metallic cover placed over the phone RF chips. Failure to ground the phone properly can result in either damaging any of these chips, building up a static charge that affects the antenna performance, or an open-circuit condition for one of the many systems on board.
Since my phone is fully working as a PPC now (PPC functions, Panels, Keyboard, Camera, GPS, Wi-Fi, Bluetooth, etc...) and since I get reception outdoors, and since I have a brand new antenna module, I am guessing that either the RF amplifier is dead, or the housing is ****ed up beyond repair (i.e. it can't be aligned perfectly to get perfect contact on all said points) that it's either shorting a connection, or opening one that is vital for the cellular radio to function properly.
So what to do? Well I forced my phone to do two things:
1. Settings > Phone > Band
- Network type: I chose GSM instead of Auto, as we don't have consumer CDMA in Egypt
- GSM/UMTS Band: I chose the correct band for my provider instead of Auto.
2. Settings > Connections > Advanced Network > Disabled HSDAP
What happened? It worked indoors for a minute, and then stopped working again! Frustrating! So what did I do? I ordered a completely new housing off CNN and will attempt to rebuild the damned thing.
I will update you if I find out anything or reach any results with this phone that I love so much and hate more than anything I have ever hated in my life...
More info!
- During the drive mentioned above, the phone was switching between H, E and G, which means that all three RF chips are, or all components of the whole RF chip if it's one responsible, are working. At one point I got 4 bars of H and call quality was perfect between hand-over failures.
- Before disassembling my phone for the second time, people were complaining about high-pitched static; it can blamed over the mic, the RF (antenna or chip) or humidity levels (which are currently as high as 85%) affecting cellular communication channels.
- Flashing the firmware (R3A Generic UK) and hard-reseting didn't solve the problem.
More Info!
- The battery cover isn't the phone's ground; it's grounded by being connected to four ground points: the mini USB port metallic frame, the GPS/Wi-Fi/Bluetooth antenna ground, a ground point on the main board and the metallic cover over the sensitive RF chips.
- This is definitely an assembly problem. The reception is great outdoors switching between all bands and speeds. On my drive to work today it worked getting G, E, 3G and H all in 4 bars. The signal, however, is completely unstable, jumping from one speed to another. I am more inclinded now to believe that a new housing will fix this problem. Your housing was probably handled poorly at the service centre, which in turn caused this problem.
My advice is to shake them a little bit and see what they will do.
A New Housing didn't fix it!
I purchased a new housing from CNN. It came in good condition. The phone looks brand new now but still no signal. I am sending it in for service. I guess I blew up my Power Amplifiers...
Good luck mate!
melaskalany said:
I purchased a new housing from CNN. It came in good condition. The phone looks brand new now but still no signal. I am sending it in for service. I guess I blew up my Power Amplifiers...
Good luck mate!
Click to expand...
Click to collapse
Same problem haa...
I still waiting for a good news from the service center... I have been waiting for a month..
I wish You a good luck too...
I'm having the same problem. I opened up my phone a few days ago to clean the keyboard. The bottom row wasn't working correctly. Unfortunately after I closed it up again, it wouldn't get any reception (and the keyboard's bottom row was still not working correctly).
So I figured it was the antenna and tried to reposition it. I even removed the rubber layer as described here: http://blog.whitesites.com/How-to-Increase-Reception-on-Sony-Xperia-X1__633958291637656250_blog.htm
Outside I get ok reception, but it's far from stable, inside I get none. And even if I get reception inside, once I pick up the phone, signal drops. So I thought about grounding as well, problem is I even tried rubber gloves and that doesn't solve the problem. I'm afraid replacing the antenna's won't help here and my xperia is dead. Anyone has any other ideas?
Been there too!
I tried the same solution the blog explained. However, I ended up not getting any signal at all. It's only after I purchased a new cellular antenna+buzzer module that the phone started getting an unstable signal outdoors.
Did you notice any small pieces falling off the main board or the housing? It's either a hardware failure or a simple short/open circuit situation that can be fixed in a blink of an eye!
Question
Is there any possible way, hardware or software, to test whether all chips on the main board function properly? I tried the diagnosis tool available here but it doesn't check the chips one by one.
Service Centre
I took my phone to the service centre 6 hours ago. With the new housing on, and new screws that I scored from a secret source of mine, they deemed the phone untouched and serviceable; i.e. it passed for a phone that hasn't been tampered with!
They told me to call back in four days. I will keep you guys updated. Cheers!
I wonder if that'll fix it So to summarize you have:
- new housing
- new screws
- new vibramotor
- new antenna
And those things twice and that fixed it maybe?
I guess it's time for a new phone for me
Vibramotor?
Who said anything about changing the vibration motor? I installed a new antenna + buzzer module; i.e. a new cellular antenna and a new loud speaker (external speaker). The loud speaker is housed within the antenna module. My bad, maybe that part was vague because I never explained it enough.
And yes, it has a brand new housing too. I only installed the lower part though, as the upper part is just fine. Maybe they will fix it man; maybe they won’t I really don't know. I do hope they will fix it though.
I am currently using a backup cheap Nokia and ordered the Sony Ericsson Aspen. If they ever fix my X1 then I can change seamlessly between both phones. If not, then I will just use my X1 as a media/GPS device in my car and an Internet device over Wi-Fi.
Lucky you..... if they can fix yours in a few day... since mine has been in the service centre more than a month, without any news...
they said to me that it will take about 6 week...
What a joke!
The phone remained at the service centre for a week. They called me yesterday, and told me that the phone was fixed and that the total cost was EGP 100 (~U.S. $18). I went over and as soon as I held the phone in my hand to test it, it lost the cellular signal. When placed on the counter, the phone had a constant E signal.
I asked to speak to the manager, who told me that they just reflashed the phone with the latest firmware (Generic UK R3A, which I already had installed). Oh, and before that, he said he was sorry but the phone had a hardware problem and that they don't fix hardware; they only flash firmwares and if that doesn't fix the phone, then the user is pretty much on his own! I refused to receive the phone, so he gave me a refund for my money and promised to have its hardware checked and get back to me in 24 hours!
What a joke, what an f'ing joke! I already regret ordering the Aspen that is due to arrive next week with a friend of mine returning from Paris...
melaskalany said:
The phone remained at the service centre for a week. They called me yesterday, and told me that the phone was fixed and that the total cost was EGP 100 (~U.S. $18). I went over and as soon as I held the phone in my hand to test it, it lost the cellular signal. When placed on the counter, the phone had a constant E signal.
I asked to speak to the manager, who told me that they just reflashed the phone with the latest firmware (Generic UK R3A, which I already had installed). Oh, and before that, he said he was sorry but the phone had a hardware problem and that they don't fix hardware; they only flash firmwares and if that doesn't fix the phone, then the user is pretty much on his own! I refused to receive the phone, so he gave me a refund for my money and promised to have its hardware checked and get back to me in 24 hours!
What a joke, what an f'ing joke! I already regret ordering the Aspen that is due to arrive next week with a friend of mine returning from Paris...
Click to expand...
Click to collapse
OMG...
I do hope that you will get the good news next...
Bad News!
Deep breath... Ok!
Here is the deal: the service centre officially announced that the fault lies within the Mainboard; i.e. my guess that the Radio Frequency (RF) Power Amplifier Chip is toast was correct. They want to charge 90% of the phone's original retail price (which was EGP 4000 = U.S. $700) for a new Mainboard. I replied that that was impossible. They will contact SE's HQ and get back to me on Saturday to see if they can offer any other alternatives.
I guess that is the end of my ride with the X1. I will sorely miss it; it was a great phone while it lasted. Let's hope that the Aspen won't die on me in a year as well...

[Q] Replaced speaker, now no wifi/bt/cell.

I replaced the speaker in my i897 and now I get no signal for WiFi, Bluetooth and cellular service. I pulled the case back off and noticed the smaller gold spring loop that makes contact with the inside of the case in the corner near the camera is broken off. Would this be causing my issue or is the new speaker or something else to blame. Where do I start diagnosing and is there a DYI to fix the broken gold spring piece. (Identical to the one that touches the battery cover but smaller and under the case.
Thanks, I'm not ready to give up this phone.
rogleete said:
I replaced the speaker in my i897 and now I get no signal for WiFi, Bluetooth and cellular service. I pulled the case back off and noticed the smaller gold spring loop that makes contact with the inside of the case in the corner near the camera is broken off. Would this be causing my issue or is the new speaker or something else to blame. Where do I start diagnosing and is there a DYI to fix the broken gold spring piece. (Identical to the one that touches the battery cover but smaller and under the case.
Thanks, I'm not ready to give up this phone.
Click to expand...
Click to collapse
I haven't opened mine in a while but if I remember it right, the connections are right beside the speaker so you most likely damaged it. I can't help you much myself on how to repair it but mobiletechvideo.com might be able to (or even repair it for you). Good luck!
BWolf56 said:
I haven't opened mine in a while but if I remember it right, the connections are right beside the speaker so you most likely damaged it. I can't help you much myself on how to repair it but mobiletechvideo.com might be able to (or even repair it for you). Good luck!
Click to expand...
Click to collapse
The white antenna cable near the speaker appears fine, the new speaker works fine, WiFi works withing 8' of the router. Leads me to believe there is some antenna connection servicing BT/WiFi/cell in one not making a solid connection. Its not the large white cable though.
rogleete said:
The white antenna cable near the speaker appears fine, the new speaker works fine, WiFi works withing 8' of the router. Leads me to believe there is some antenna connection servicing BT/WiFi/cell in one not making a solid connection. Its not the large white cable though.
Click to expand...
Click to collapse
Our phone is known to have bad signal (Wifi, GPS and such) when there's something covering the top of the phone so perhaps there's something interfering near the antenna?

No service after waterdamage

Hello,
My note fell into the water last night and it was a pain in the ass to fix. I kept my phone in a bag of rice overnight to soak up most of the water. Today I took it apart and removed the remaining water and put it back together. The phone finally works again! Yes, it all works except for the service.
When I unlock my sim with my code everything works, but I cannot call or be called because there's no service, even though whatsapp etc works fine.
Can anyone help me with this?
Also: sometimes it DOES work, but the signal is very weak. Sometimes I can call and be called and sometimes I cannot.
You might have disconnected the antenna while taking it apart. Check for bent connectors etc. You can also check the external antenna - remove the small black rectangular sticker on the right side of microsd slot above the battery. You can insert a thin copper wire with a piece of aluminum foil connected to it - you should get some reception. If you don't and you internal antenna is properly connected then the water might have damaged some electronics. It can get expensive.
Be careful and don't hold me responsible if you mess up your phone any further. And good luck.
I'm not sure. I'm still getting a signal every now and then. Is there a video on how to do this by any chance? And do you have a picture of the antenna by any chance so I know what to look for?
Sorry, can't be of much help here, never had to open my Note. But I remember back in days whaen I messed around with my Touch Pro 2 and HTC Desire it was a common issue. Nearly every time I got the phone back together either phone signal or Bluetooth were gone and the reason was always some bent copper connectors that didn't stick together when all the parts were back in place. These things are fragile. Sometimes had to clean them as well. Google for Samsung Galaxy Note N7000 disassembly manual, I'm sure there will be one with decent pictures somwhere online, it'll help you locate the internal antenna. If there's some weak signal sometimes it's a good sign and looks very much like disconnected antenna, you may check the external one to be 100% sure.
Edit: the antenna is a thin copper sticker somewhere on a flat surface of the chassis, either on the side or around the camera or something like that. It's often painted in the color of the chassis to prevent it from oxidation. There are several - phone, bluetooth, probably wifi and maybe GPS (dunno). It's usually possible to follow where it leads to and find connectors.
http://www.youtube.com/watch?v=N6CJy71_9Ok
watch the whole thing but pay particular attention around 3:10

[Hardware Mod][Teclast x98 plus II] Improving WIFI connection

WARNING! Hardware mods can brick your tablet even faster and deadlier than software, so please read carefully.
I am not responsible for your bricked tablet.
As I promised, I will share my experience about my attempts to improve the WIFI on my Teclast X98 plus II(C2D4).
A lot of users reported very bad WI-FI with this particular model, and the reason is simple:
The metal back cover! It simply shields the internals!!!. And we need to find a way around it.
First Step: Open the tablet
Have a plastic guitar pick and a cutter around
Try to find a gap to insert your pick
If you can't find a gap to insert the pick, slowly insert the cutter on the top of the tablet where the plastic strip is, and then insert the pick
Don't use the cutter to open, because you will make dents into the plastic
Don't force anything, be patient
After you inserted the pick, and you poped one part, the rest will follow
Don't insert the pick too deep and be extra careful with the cutter
Background: I live on the second floor, and I have a router on the first floor:
Speed before the mod: up to 5 Mbps
Now once the tablet is open we can see the internals, and it looks like it has plenty of space. We are interested in this part, the WIFI antenna:
Notice marking on the board: wifi plus(+) and minus(-)
First thing that I thought, is that maybe there is short between them. I checked with a multimeter and it was none.
I powered the tablet and did a speed test: the speeds were amazing!
So I started to experiment. There were multiple attempts but only two I found good enough.
Step TWO: Hardware mod
1. The basic way
You need only a pair of tweezers
You tweezers to unglue the tip of antenna
Be patient, do not apply to much force, the adhesive is strong but it slowly gives up
after the slim part of antena is free, make a fold 90 degrees up, so it will stick out of the case
Do not fold to agressive, the antenna doesn't really bends that way, so be carefull not to break it
make sure that antenna is not in the nearby clip and close the case
antenna still has adhesive, so glue it back to the screen
After you followed the steps from above, you should get something like this:
It is not very nice, but rather than an unusable tablet, this one is pretty good. Also, make sure you are not touching it when you use the tablet.
Speed after this mod: 5-15Mbps
2. Soldering extra wires
Warning! Be extra careful, while is not very difficult to solder on our tablet, I still recommend you to try to solder something before starting to work on the tablet.
You will need:
Soldering iron
Soldering supplies
multimeter
Copper wire with plastic cover(internet cable is not very good, phone cable: good)
Tape
Steps:
Cut a piece of wire, around 5 cm long
Remove the plastic from one end just a little, so you could solder it
Remove the plastic from the another end, about 3 cm, so that the wires will be free
Solder the short end to the (+) of wifi
Check if there is no shorts between the + and -
check that the original cable actually connects to original antenna
(Optional) Unstick the antenna from original position and stick it to the back cover, see images for details
stick the antenna exactly as shown in the image
be careful, do not rush and do not twist to hard
Get the free end of the soldered cable out of the case
Carefully put back the cover, with the copper wires sticking out
Do not press the cover fully, leave the top area a little open
Insert the thin wires between the gaps(as close to outside as possible)
Do not let the copper wires touch the metal back cover, twist them more to the center
Tape all connections, so it will not short with back cover!!
After you solder everything. You can also see the third cable with an aluminum foil, but that doesn't really do anything
This is the image with copper wires sticking out, better put them in the cracks before snapping the back cover:
Speed after the last mod: 10-25 Mbps
Please tell me the results.
If in doubt, better ASK BEFORE TRYING!!
Thanks Veaceslav. I soldered a phone cable exactly as you describe in option 2. I did not touch the original cable. I am hesitant to touch the original cable and antenna. I soldered the additional wire's one end to the ( + ) WiFi panel. I stayed away from the ( -) sign. The other end of the wire was kept hanging outside as you did. Unfortunately that did not seem to have any impact, better or worse. I suspect this is simply the limitation of the Realtek wifi module. It simply has a maximum range of 10 meters (as stated about this participated module). When I am in the same room as the router, I get the maximum speed which is 25 Mbps. Once I go to a different room about 9-10 meters away, I get very poor speeds, almost unusable.
aj624 said:
Thanks Veaceslav. I soldered a phone cable exactly as you describe in option 2. I did not touch the original cable. I am hesitant to touch the original cable and antenna. I soldered the additional wire's one end to the ( + ) WiFi panel. I stayed away from the ( -) sign. The other end of the wire was kept hanging outside as you did. Unfortunately that did not seem to have any impact, better or worse. I suspect this is simply the limitation of the Realtek wifi module. It simply has a maximum range of 10 meters (as stated about this participated module). When I am in the same room as the router, I get the maximum speed which is 25 Mbps. Once I go to a different room about 9-10 meters away, I get very poor speeds, almost unusable.
Click to expand...
Click to collapse
1. Did you check if you don't have a short between the (+) and (-) ?
2. Did you put some tape on top of the part where the (+) and (-) is? The back plate might sort them when is on top
4. You can also unstick the antenna and stick it to the plastic part of the cover, as shown in the picture, but be careful how you twist the antenna cable
Well the chip is also bad, in some areas I still get 1-2 Mbps where my phone still can do 15-20 Mbps..
Hi fellow user of the Teclast X98 Plus II!
I received my tablet only 3 weeks ago. I have the dual boot C2D6 version. The wifi was not stable (connection loss) and very slow.
After I updated the Firmware (C2D6, from the Teclast website) for the android version only I experienced better performance (no slow speed anymore). Unfortunately I still have loss of connection now and then. I didn't have the guts yet to do your harware mod
At least my table is usuable, however still not fully happy with it...
worked perfectly !
Thank you man ! I just followed what I did understand. For me, the plus (+) and minus (-) were shortened. I unsoldered the wire used for antenna and I just soldered it to the minus : this way, the minus is soldered to the mass (the black plate). I soldered an iron wire to the plus (+) and made a hole to let it go outside of the tablet. Now, I have a 15 Mbps stable connection at 10 meters (and 3 walls) while I had only 0.3 Mbps and unstable before.
Hi, the Mod work!!!
Photo A : My colleague unwrapped the wire of the original wifi antenna and soldered a Laptop Wifi antenna.
Photo B : I installed the antenna on the battery near the loudspeaker and closed the tablet. I completely lost the signal.
Photo C : After several tests I installed the antenna on the cover on the plastic section near the photo exit.
Result :
Original : 0-2 Mbps at that range
After the first intallation paste on battery : no reception
Before closing the case : 27Mbps
After closing the case : 16Mbps
Best result is 33Mbps – maximum on connection with the internet provider.
Not spectacular performance, but really usable.
Nice to hear that it worked for you!, to get the best results, take a look at the antenna that you soldered, see the thin wire part and then the huge base plate? Make sure that the thin one(+) is as far away from aluminum cover as possible. Also, try not to put it on top of something like the sd-card corever, because that one is also grounded(-)
Wifi Antenna paste on cover
veaceslav said:
Nice to hear that it worked for you!, to get the best results, take a look at the antenna that you soldered, see the thin wire part and then the huge base plate? Make sure that the thin one(+) is as far away from aluminum cover as possible. Also, try not to put it on top of something like the sd-card corever, because that one is also grounded(-)
Click to expand...
Click to collapse
Hi Veaceslav,
First thanks for your tips and experience with the tablet.
The Laptop Wifi Antenna is paste with electric tape on the back cover on the plastic near the camera hole. the original antenna is remove from the Wifi pole + and - .
I try to install the Laptop Wifi Antenna at many place on the tablet. The second best place is outside the case on the side.
The pictures are not so clean, but I pretty happy with the result. Do you think that I should reinstall the original Wifi Antenna and if so change the wire?
My collegue try it with the laptop antenna and he said that the connection was really bad.
Thanks for your feedback
I don't know exactly, how it works better.
1. First I had 3 wires, original antenna(which I got it out of original position and glued it to the plastic part, as you can see in my pictures), the copper wire and a wire connected to a aluminum foil(wrapped in plastic). This one had decent speeds and good stability
2. Then I decided that I don't need the aluminum foil and I cut the 3rd wire, and I got slightly better internet speeds and but now I am getting a strong "gate effect(when you cover the part where antenna is with your hand, the signal drops to zero)"
I wish I didn't cut the 3 rd wire, because now I need to be careful how do I hold my tablet. I ordered a new antenna, which I am going to solder alongside with the original.
Do some experiments and see what setup works better for you!
I will share my results once I get the antenna
BoomBox antenna
What about using an antenna from a portable radio hacked into the case? TIA
eight.nit.al
Many thanks @veaceslav for the idea of this hardware mod!
I removed original WiFi antenna at all, and installed some used one from laptop (Toshiba L650, but probably can be any).
I've tired few location, and I get the best signal when antenna is placed on the opposite side to the original antenna, I mean next to the battery. There is some space and the new antenna fits almost ideal.
Before mod I got max 10 Mb/s and totally no signal (zero) when tablet was laying on the desk. Distance to router - 5 m.
Now under the same conditions I get max 30 Mb/s and 20 Mb/s when tablet is laying on the desk. Absolutely incredibile.
eight.bit.al said:
What about using an antenna from a portable radio hacked into the case? TIA
eight.nit.al
Click to expand...
Click to collapse
Any thick wire also works an antenna, however the build in antenna is still the best. You just need to unglue it from the case and stick it in reverse on the cover, the same as shown in the first picture. The gains will be substantial.
MarcinLewkowicz said:
Many thanks @veaceslav for the idea of this hardware mod!
I removed original WiFi antenna at all, and installed some used one from laptop (Toshiba L650, but probably can be any).
I've tired few location, and I get the best signal when antenna is placed on the opposite side to the original antenna, I mean next to the battery. There is some space and the new antenna fits almost ideal.
Before mod I got max 10 Mb/s and totally no signal (zero) when tablet was laying on the desk. Distance to router - 5 m.
Now under the same conditions I get max 30 Mb/s and 20 Mb/s when tablet is laying on the desk. Absolutely incredibile.
Click to expand...
Click to collapse
If you put it under the metal cover, then you might loose some power, also when you hold the tablet, the signal drop might be even bigger. try to keep in close to the plastic strip from the top
I still found the default antenna the best optimized for the chipset, I just had to get it away from the metal plate of the sd card. That one is grounded and kills all the signal
@MarcinLewkowicz,
did you took a photo and can share it with us.
Thanks.
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