Database Users

Hardware help needed...

Hi everyone.
Seems this forum has at least a couple of people taking their Prophete apart (as I do) and collecting some hardware know-how.
I have two Prophetes (XDA Neos to be correct) with different problems.
I start with the history (how it comes) and will end with what I know know and where I do not get any further currently:
Prophete #1:
5 years old from O2 germany contract, G4 device (Rom versions to be posted on request, device is at home...). Was broken twice (no booting any more) during warranty and the got wet when I was hiking only with a shirt in a thunderstorm. No warranty of course, but device dead ;-( And nobody would repair it - not even for money. Pissed off from O2, but whatever...
So I found here somewhere the Maintenance Manual and disassembled the thing, dried everything and had to buy a new battery and since then it more or less works fine. The battery I was able to re-animate by charging with Laboratory power supply - The Prophete seems to go dead below a certain voltage and does not even try to charge the batt any more...
For a while I had strange illumination effects - screen fixed very bright with one half even brighter and bad color contrast - possible to work, but ugly. This disappeared slowly after 2 more years...
Then I had this well-known dead speaker-thing (dirt in headset socket) - also long time ago repaired.
But now (over the last 2 years, increasing lately a lot) I have this strange scratching noise on the main speaker. It was supposed to be a bad speaker why I bought on ebay a defective second Prophete (to be discussed below) and switched speakers - booth are fine in #2 but scratching in #1. The trick with some cardboard under the speaker cover also does not work reliably and not at all in last months.
What I found last time I took the device apart is: when I leave a finger nail thick gap between the front cover and the housing frame in the lower half of the device, then everything is fine. But that is unsatisfactory to work with a semi-disassambled phone!
I guess, it has to do with some hair-break in a connection on the mainboard or something with the contacts between the different boards (spring contacts for grounding?) or with the headphone socket.
DOES ANYONE HAVE EXPERIENCE WITH THAT SCRATCHING NOISE and can help? Where should I search?
Device #2:
Bought 1 year ago as broken. Has a crack in the touch screen, but the screen responds fine and precise all the way down to < 1mm from the crack. After cleaning the screen and the front cover, the device started to work again (touch was inop. when I got the thing).
WLAN is dead. BT seems to work.
GSM did work fine. So the device got my wifes new mobile phone. And after 3 months it started to refuse contact to any GSM network.
If I search for networks, it lists all the providers around in germany, but when I have it connect to one, it times out. So I think the Radio (GSM) system is still working (at least receiving network names, tuning right frequencies etc.), but not correctly.
I did reflash the radio ROM, but no success so far.
Sometimes after cold boot, the telephone app in general and the settings specifically are very irresponsive (long answer time, complete WM crash, whjatever). Thus I consider reflashing the entire device.
Q:
- what are good radio and WM(best: 6.1 GER) ROMs to try? (No flashing experience so far)
- what are typical GSM and WLAN failure mechanisms of the Prophetes (bad solder points, bad spring contacts etc.) - i.e. where to look?
I could even consider a "make 1 good out of 2 broke" - action - but I am afraid, that booth devices have a somehow mainboard-located problem.
Thanks for any helpful comments!
Torsten

thats easy men...just take out the LCD from prophet 1, and also Put to Prophet 2.
search in youtube for prophet disassembling...take care
ps: check The LCD Code (some prophet make different LCD)

Samsung Galaxy S2 Can't activate Wifi or Bluetooth

hi everyone
first of all sorry for my bad english
Phone Data
ICS 4.0.3 German Version I9100XXLPS CF rootet
Waranty? : probably not anymore
Problem:
I was angry and threw my SGS2 against the wall and after the display was broken. I bought a new display with a frame from a famous internet auction site with some extras on it. -> an original one
(
· Home Button
· Audio jack
· Vibrator
· Charging Port
· Ear Piece
· Microphone
and more...
)
So I disassambled everything that was missing on the frame and reassambled it on the new one. That made my day. I was very happy cuz it worked all well til I noticed that couldn't activate neither the wifi nor the bluetooth anymore. But it worked before broke the display. So looked closely to the boards in the phone but it looks fine. You can't see a damage on them. Oltough I stipped the waranty sticker carefully and placed it on the new frame you can see that there is dust underneath it. Now I think I have no waranty any more.
I did a Wifi test per *#*#526#*#* -> NotSet Driver loaded ng
Did not help out either.
Every time when I try to activate Wifi or Bluetooth the button doesn't even light up. It becomes dark green. Not the activated lightend up green just the dark still-try-to-activate green.
Who can help me? Google doesn't respond how I want it and I didn't find a similar threads.
Now I am really sad disappointed und can't believe it.
That must it be like what people feel after they get raped in prison.
I tried many firmwares old and new ones. -> didn't work
I tried many radio/modem files via cwm -> didn't work
I wiped all caches -> didn't work
PS: calling writing massages and 3g (mobile internet) still works
ooh sgs why couldn't you kiss me before you f***ed me?

Same here, I've been trying the methods posted by erdinator above, but could not get my Wifi working too.
ICS I9100XXLPQ Kernel.
The status is still the same; dark green, and trying its best to activate. It worked yesterday in the morning, but refuses to work from evening onwards.

I had a similar problem but a reboot fixed it but I'm on UK unlocked LP7

Well I just updated my SGS2 to ICS yesterday. Today when I wanted to connect to WiFi it got stuck on "activiating WiFi". Then the screen went black and the phone stopped responding. Had to pull the battery. Everything was fine after booting up, though it consumed like 5 % of my battery just like that. Even the battery meter shows a huge jump and a little gap even. Odd

xenover said:
Then the screen went black and the phone stopped responding. Had to pull the battery. Everything was fine after booting up, though it consumed like 5 % of my battery just like that. Even the battery meter shows a huge jump and a little gap even. Odd
Click to expand...
Click to collapse
Yea, I just got this too. When the screen locks, it just stops responding. The entire phone was almost like bricked. And when I force restart (hold down the Power button for 15 seconds) the phone, it rebooted nicely. But the battery drain is terrible.

You broke u'r motherboard

rocky922 said:
You broke u'r motherboard
Click to expand...
Click to collapse
I checked the board with a magnifying glass many times today there is no single tiny crack/break/burst.
I hope u r not right

erdinator said:
hi everyone
first of all sorry for my bad english
Phone Data
ICS 4.0.3 German Version I9100XXLPS CF rootet
Waranty? : probably not anymore
Problem:
I was angry and threw my SGS2 against the wall and after the display was broken. I bought a new display with a frame from a famous internet auction site with some extras on it. -> an original one
(
· Home Button
· Audio jack
· Vibrator
· Charging Port
· Ear Piece
· Microphone
and more...
)
So I disassambled everything that was missing on the frame and reassambled it on the new one. That made my day. I was very happy cuz it worked all well til I noticed that couldn't activate neither the wifi nor the bluetooth anymore. But it worked before broke the display. So looked closely to the boards in the phone but it looks fine. You can't see a damage on them. Oltough I stipped the waranty sticker carefully and placed it on the new frame you can see that there is dust underneath it. Now I think I have no waranty any more.
I did a Wifi test per *#*#526#*#* -> NotSet Driver loaded ng
Did not help out either.
Every time when I try to activate Wifi or Bluetooth the button doesn't even light up. It becomes dark green. Not the activated lightend up green just the dark still-try-to-activate green.
Who can help me? Google doesn't respond how I want it and I didn't find a similar threads.
Now I am really sad disappointed und can't believe it.
That must it be like what people feel after they get raped in prison.
I tried many firmwares old and new ones. -> didn't work
I tried many radio/modem files via cwm -> didn't work
I wiped all caches -> didn't work
PS: calling writing massages and 3g (mobile internet) still works
ooh sgs why couldn't you kiss me before you f***ed me?
Click to expand...
Click to collapse
Poor you! seem your wifi chip died. . My Galaxy S2 have the same "NotSet Driver loaded [ng]" and Samsung Vietnam change my mainboard and it work.
PS: Good job samsung vietnam, they replace my mainboard and return it back in only 45 min.

hiepgia said:
Poor you! seem your wifi chip died. . My Galaxy S2 have the same "NotSet Driver loaded [ng]" and Samsung Vietnam change my mainboard and it work.
PS: Good job samsung vietnam, they replace my mainboard and return it back in only 45 min.
Click to expand...
Click to collapse
samsung vietnam r u livin there?

sometime i also same is true~~

Hence, in the end, it's because of the motherboard? Hmm... Interesting. Have anyone tried?

erdinator said:
I checked the board with a magnifying glass many times today there is no single tiny crack/break/burst.
I hope u r not right
Click to expand...
Click to collapse
Check if the white wire is well connected to the motherboard, it's the antena cable
Sent from my GT-I9100 using xda premium

NoOneCanHelpMe said:
Check if the white wire is well connected to the motherboard, it's the antena cable
Sent from my GT-I9100 using xda premium
Click to expand...
Click to collapse
i checked the cable many times and also tried a cable of a friend of mine no use
i had sent it to samsung for warranty service and they sent it back repaired it was the motherboard

erdinator said:
i checked the cable many times and also tried a cable of a friend of mine no use
i had sent it to samsung for warranty service and they sent it back repaired it was the motherboard
Click to expand...
Click to collapse
Was the repair expensive, mate?

I have to confirm, but i think that the wifi/bt is a replaceble part. Let me check and reply back
Sent from my GT-I9100 using XDA

galaxy s2
erdinator said:
hi everyone
first of all sorry for my bad english
Phone Data
ICS 4.0.3 German Version I9100XXLPS CF rootet
Waranty? : probably not anymore
Problem:
I was angry and threw my SGS2 against the wall and after the display was broken. I bought a new display with a frame from a famous internet auction site with some extras on it. -> an original one
(
· Home Button
· Audio jack
· Vibrator
· Charging Port
· Ear Piece
· Microphone
and more...
)
So I disassambled everything that was missing on the frame and reassambled it on the new one. That made my day. I was very happy cuz it worked all well til I noticed that couldn't activate neither the wifi nor the bluetooth anymore. But it worked before broke the display. So looked closely to the boards in the phone but it looks fine. You can't see a damage on them. Oltough I stipped the waranty sticker carefully and placed it on the new frame you can see that there is dust underneath it. Now I think I have no waranty any more.
I did a Wifi test per *#*#526#*#* -> NotSet Driver loaded ng
Did not help out either.
Every time when I try to activate Wifi or Bluetooth the button doesn't even light up. It becomes dark green. Not the activated lightend up green just the dark still-try-to-activate green.
Who can help me? Google doesn't respond how I want it and I didn't find a similar threads.
Now I am really sad disappointed und can't believe it.
That must it be like what people feel after they get raped in prison.
I tried many firmwares old and new ones. -> didn't work
I tried many radio/modem files via cwm -> didn't work
I wiped all caches -> didn't work
PS: calling writing massages and 3g (mobile internet) still works
ooh sgs why couldn't you kiss me before you f***ed me?
Click to expand...
Click to collapse
... hi we are have same problems i have s2 no wifi and bluetooth jingerbread i decide to root in jelly bean 4.2.1 to see if wifi and bluetooth is fix but didn't work ...

[Q] I9505: No WCDMA/LTE after phone damage & repair

Hello,
I had my phone water damaged and repaired, but now my WCDMA/LTE doesn't work and I have some suspicions they had a faulty repair on my phone. Here's a timeline of the events to understand why"
1. Bought I9505 (I live in europe, hence the european version). All worked fine, had HSDPA (no 4g when I bought it 2 years ago, since my carrier didn't support it yet).
2. Did a small dent in the phone's screen (cracked glass in the upper corner, near proximity sensor, tiny piece of glass missing [1mm], but touch screen worked fine)
3. Dropped it in water while on vacation. Quickly took out battery, bought a bag of rice and held it in rice for ~20h, hoping the water would be absorbed.
4. Next day I fully charged then turned on my phone, it was connected to 3g, I was receiving facebook notifications, my mother called me at one point and ringtone was working. The only problem: touch screen didn't respond at all so I couldn't answer or unlock my screen.
5. Took it to a local service, they changed my screen (and did a full reset on my phone that I wasn't asked permission for - that I didn't understand why, but I thought who knows, maybe they needed it for the screen change). However, I wasn't upset since I was more interested in getting my touch screen to work, and it did.
6. HERE's THE PROBLEM: yes, they fixed my touch screen, but now i have to use it only in "GSM only" network mode, since the others don't work: whenever I choose any of the other options ("WCDMA/GSM, WCDMA only, WCDMA/GSM/LTE"), I lose signal completely, and I get "Not registered on network" message when trying to call. I should mention that APN setting are correct and I tried the SIM in another phone and it worked. I also tried another SIM in my phone and it didn't work.
7. Somehow I thought it might've been the water damage and I was ok (although upset) with it. But I searched the internet for answers since I thought maybe I'd fix my phone due to a software/bad config problem. I used ODIN to flash different versions of official firmwares with no success.
8. HERE's WHY I'm SUSPICIOUS: I found some piece of information that said the LTE/WCDMA(data) module is embedded in the display, not in the motherboard. Upon further research, i found the USSD code *#2663# that tells me the display is from a SGH-I337 (S4 model used in the US). Thus, if the data module truly is embedded in the display, that would render my data service useless, since the US frequency is not the same with EU frequency.
What do you guys think ?
Is it truly the display's fault or did I get erroneous information regarding the WCDMA/LTE ?
Am I entitled to negotiate with them because they put an incompatible component on my phone for a partial refund or is this my phone's fault ?
Is there any way to force the frequency somehow so my phone works (rooting & modifying some modem files maybe) ?
I'm sorry if I had some presumtious/loaded questions, but it's all information that I had from the internet.
Thank you for your patience to read all of this.

Do us a favor please? Enter download mode (Volume -, Home, Power) and read off the model number listed there. Reason being that I suspect your phone was totally replaced, with an AT&T model.

Did that just now, the product name says GT-I9505. The IMEI is also the same as before (checked with the product packaging it came with when I bought it). Could they have any way to overwrite this stuff ? Because your knack is not unfounded - under the battery, the IMEI/SN sticker seems to have been peeled and re-glued since it's wrinkly and misaligned.
Worst part is they're authorized Samsung service partners, that's the reason I went to them and not another service. (I can find them on the samsung website, when looking for service locations)

It sounds like they simply moved your motherboard into an AT&T midframe. I'd take it back to them posthaste and have them fix it properly. Because LTE isn't working, and it was before they did their work, they are responsible.

Galaxy s4 almost bricked

Hello. I want to start off and say that even tho i used a lot of phones Samsung fits me bets. With that in mind i want to tell the story of my broken s4 i9505. I bought it new and used it about 2 years until i got and iphone 5s. The phone remaind in a drawer with the intention of selling some time but forgot about it, then i used the phone once a week or so paired with moto 360 because iphone could not connect and used the watch only for time .(bluetooth worked fine remember this). Anyway i decided to sell it and i had all my apps and accounts in there so i thought the fastest way was to factory reset it and make it fresh so i can sell it (rom was not stock at the moment, i have no ideea what rom it was). I sold it to a friend that told me he wanted to pair something with it thru bluetooth and bluetooth didnt work...i sayd that it wasnt possible because all i did was a factory reset and that couldn't damage anything. Things got worse as the phone was charging very very slow and if it got over 90% baterry would not respond to anything (red led at 90% and got to green when full but still no response from phone) and the only thing to do is to remove battery. Then i took the phone back, got it a new battery but that didn't changed anything, took it to some repairs shops that didn't ever hear about this problem, i had it chance the software but that didn't do anything. The problem i suspect it is and i saw a few other posts online was the bluetooth module would stop working for some reason and do this to the phone. Currently i don't know what to do with it and i don't want to sell it just for part for 50 euros or so. Also i read that the bluetooth module can't really be changed as a spare part because it's part of the motherboard and that means almost all the phone. Phone is in mint condition, i didn't damage it before the sell , the buyer didn't damage it or messed with the rom...Another thing i noticed is that in settings under bluetooth address says unavailable. Can someone please help me ? I can provide more information about serials and stuff if needed. Also wi-fi doesn't work now.

Mine also show unavailable under Bluetooth address, but it works.
Are you currently on the stock rom?

Yes is stock. Android version 5.0.1 I9505XXUHOJ2. If i toggle bluetooth on says starting bluetooth then after 5 seconds it disables. I guess the problem is from hardware not software. So fast battery drain is not normal something is using a lot of energy.

As far as I know, the Wi-Fi and Bluetooth modules are in the same physical chip, therefore something might be physically broken. Here's a clip I came across while trying to fix my phone's Wi-Fi and I think it's exactly what might fix yours. (Should be very cheap to do too.) I think basically what he's doing is putting some flux on the board then reflowing it with the hot air gun.
Before taking that step, be sure to exhaust the possible software fixes. I'm not sure, but updating the bootloader and modem MIGHT fix it.

My wi-fi started working again it just took a while but the bluetooth does exactly the same as in the clip so maybe that's the problem. I don't understand why does so glue over it make it work...also for me it's hard to turn the phone off because the screen goes black but the blue led still stays on and the only way to turn it off completly is to take out battery. Maybe this will solve the battery problem aswell ?

Samsung LED cover with custom ROMs

I have had a Samsung LED case since I first bought the S7E back in 2016. It still works well but only with official Samsung firmware versions.
I can understand that their is some proprietary code in there to detect the cover, but on the custom ROM I'm currently using, not even the open and close function switches the screen on and off.
I was wondering how difficult it might be to incorporate the relevant Samsung routines into a custom ROM to give either
a) Screen on /off when the cover is opened and closed
or
b) the above plus full LED functionality as experienced in Samsung firmware.
I'm not a dev, but it may assist others to implement such features.
Any help appreciated.
Thanks