1- it's reboot many times without any reason(I read one thread about it but i dont understand what to do!!)
2-sometimes 2gb microSd card loosing?(i cant open it from phone...only rebooting helps!!)On other devices card works good!
The usual reason for a 3125 rebooting is that the battery cover has gotten worn down to the point that the micro-switch under it is not fully depressed. There are multiple potential wear-down points. The hooks on either side and the tabs at the bottom can get worn or even broken. There is also a raised pad at the lower left (looking at the cover from the inside) than can get worn, as can the contact point on the switch.
Typical solution, providing the hooks and/or tabs are not totally broken off, is to put a thin piece of plastic or cardstock between the microswitch (lower right of the batter compartment) and the cover. It's a temporary solution (it tends to get continually worse), so if this fixes it, you should check eBay for a replacement cover.
That said, I had a phone that reset for another reason, which I never found. So it could be something else. I ended up buying a phone with a bad keyboard and doing a keyboard transplant from my old one.
I had the same problem and I'll tell you what I did. Open the back cover and you will see a little black switch next to the sim card/below the battery. I took a pair of needle-nose pliers and just twisted that sucker right out like a bad tooth (carefully though, you don’t want to tear up the foil on the board). Then I put a small spot of solder on the two contacts that the switch used to connect to. Never had a random reboot ever again. From then on, just make sure you take the battery out first before ever messing with the sim/sd card.
That worked for me.
Thanks
dexx40steve said:
I had the same problem and I'll tell you what I did. Open the back cover and you will see a little black switch next to the sim card/below the battery. I took a pair of needle-nose pliers and just twisted that sucker right out like a bad tooth (carefully though, you don’t want to tear up the foil on the board). Then I put a small spot of solder on the two contacts that the switch used to connect to. Never had a random reboot ever again. From then on, just make sure you take the battery out first before ever messing with the sim/sd card.
Click to expand...
Click to collapse
i have the very same problem and this sounds like a perfect long term solution.. any chance of getting picture of ur mod for morons like me who need visual stimulation?
regards,
hi,
I'm thoroughly baffled here .... can anyone help please ? ... it's a long post I'm afraid, since I want to include all the info I can.
recently my beloved Legend suddenly decided it has no signal .. I get 'limited service' and the dreaded red 'X' all the time.
prior to this I had done no changes to phone nor had back cover off or taken the sim out. I have upgraded it to Blayos rom and all has been fine.
after some searching I discovered all the advice re bad antenna and a so called fix by shorting some terminals with a piece of wire.
(exactly which terminals was not made too clear though)
I am not sure though that I actually do have a bad antenna as I have cleaned the 2 under the bottom cover and 'lifted' the mating contacts ...
and have done the same with those under the camera cover.
one other thing I did was to circuit test all the 6 contacts in my phone, and they all 'ring out' ok ...
indeed they all ring out to each other, even with covers off, which suggests to me that there is a good circuit in the phone
still no service, but my GPS gets a lock pretty quickly, does it use the same antenna setup ? ...
I'm not even sure if it does really as I have read that phone will not work with bottom cover off, yet my GPS certainly does !
lastly I doubt it is the sim as it works fine in my wife's phone, but her's does not in mine.
over 190 viewings and no suggestions ...anyone please ?
in desperation I have changed my Radio from 7.13.35.05 to 7.13.35. 13 and got no improvement
Last act of desperation would be returning to stock...
If your not on airplane mode all the time I doubt this is a software issue.
Sent from my HTC Legend using xda premium
Hi everyone,
I am experiencing a problem with my Samsung Vibrant. It keeps saying "Sim Card removed" and asks for restarting. It happen every 5 minutes or so. Any one has an idea in how to solve? Running CyanogenMod 9 Nightly Vibrantmtd.
Peace!
Maybe try cleaning the contacts on the card. Or you may have fired your SIM card with that crazy Haitian heat down there. Might want to look in to getting a new SIM card and see if that works out.
Thank you for response Woodrube. I didnt come back to the post because i have solved the problem. It was about the sim card reader on the board of the phone. I changed it and it worked like a charm. I sold it right after. I'm now on Galaxy S2. The haitian heat is something a man should try before he dies man. I hope you'll have that chance... lol.
Well, i really appreciate your help man.
Peace.
Sent from my MZ601 using XDA Premium HD app
Hi, just wanted to add my own experience to this subject. My phone got a little bit wet, not submerged but just dripped on a little bit. Some of this water made its way into the back of the phone through the speaker hole and side slits. I compounded the problem by pushing the power button to turn it off instead of just pulling the battery; this caused the physical switch to suck some water in and short out, causing symptoms similar to a boot loop - put the battery in, phone immediately turns on, starts to boot, turns itself off just as boot animation comes up, repeat, until battery pulled. Long story short, I had to tear apart the phone, dissect the power switch, blot out water, and reassemble.
All good until I started right away getting 'SIM card removed, reboot phone' messages. Power down sometimes made it see the SIM again for a litle while, sometimes I had to pull the battery and jostle the SIM card and then it would work a while, etc.
I re-opened the phone after a week of this and discovered that while I was poking around inside, the ribbon connector for the SIM card / SD card reader daughterboard had become disconnected, on the hidden side of the motherboard (i.e. the screen side). I had to disconnect two similar ribbons on the battery side to be able to lift the whole assembly out of the case, push the SIM reader ribbon connector back into its receiver, and then all was well. I think it was only working at all because the being pushed up against the case was kind of holding the connector in place, if only in a janky way.
So, check for disconnected SIM card reader ribbon before ordering a new part. In fact, looking at the part online is what gave me the idea to check. I would post a link to the part, but as a new XDA user I'm disallowed until I make more posts. Google.
Thanks XDA for being awesome!
Currently running CM10 nightlies and loving my phone, after having official Froyo for nine months and hating it.
Hello,
i just got my Z2 and well i have drm fix xposed and some mods installed and one time i just held device and violaa no signal on it, on lockscreen it shows No Service and there empty signal bar, but there`s IMEI present and untouched so no IMEI problem...
i tried Reflash stock rom LP and KK too with flashtools but still no success... so what a heck to do?
P.S of course i searched everything in Google but i got nothing, still could not find any solution
Prerevision said:
Hello,
i just got my Z2 and well i have drm fix xposed and some mods installed and one time i just held device and violaa no signal on it, on lockscreen it shows No Service and there empty signal bar, but there`s IMEI present and untouched so no IMEI problem...
i tried Reflash stock rom LP and KK too with flashtools but still no success... so what a heck to do?
P.S of course i searched everything in Google but i got nothing, still could not find any solution
Click to expand...
Click to collapse
Strange issue... Does your Z2 ask you for a PIN code when you turn it on or not?
Bruce666 said:
Strange issue... Does your Z2 ask you for a PIN code when you turn it on or not?
Click to expand...
Click to collapse
no, by they way its 03 LTE version bought in store so it cant be simlocked, also in some locations it has signal but manly it don`t
heyy anyone pleasee?
Prerevision said:
no, by they way its 03 LTE version bought in store so it cant be simlocked, also in some locations it has signal but manly it don`t
Click to expand...
Click to collapse
"also in some locations it has signal but manly it don`t" --> unfortunately this feels like an hardware problem, defective or disconnected antenna or something like that.
If it was software related flashing the stock rom should have fixed it...
Have you tried another sim card on your phone? maybe a defective sim card could be the cause too and you can test that easily. if it's also not sim card related i would send it to sony if i still had warranty.
If i was out of warranty i would open the phone (buy new adhesives before you do this, i don't think you can reuse the original) and check the coax antenna cable. I never opened my z2 but it doesn't look that hard.
https://www.ifixit.com/Guide/Sony+Xperia+Z2+Logic+Board+Replacement/34646
on step 6 you can see the coaxial antenna highlighted in the blue circle, it looks like a pigtail connects it to the motherboard i would check that first.
ptmaniac said:
"also in some locations it has signal but manly it don`t" --> unfortunately this feels like an hardware problem, defective or disconnected antenna or something like that.
If it was software related flashing the stock rom should have fixed it...
Have you tried another sim card on your phone? maybe a defective sim card could be the cause too and you can test that easily. if it's also not sim card related i would send it to sony if i still had warranty.
If i was out of warranty i would open the phone (buy new adhesives before you do this, i don't think you can reuse the original) and check the coax antenna cable. I never opened my z2 but it doesn't look that hard.
https://www.ifixit.com/Guide/Sony+Xperia+Z2+Logic+Board+Replacement/34646
on step 6 you can see the coaxial antenna highlighted in the blue circle, it looks like a pigtail connects it to the motherboard i would check that first.
Click to expand...
Click to collapse
tried another sim, it`s same but hardware? it worked just fine but once.... ehm well it`s already open iv got water damage while put it in water but one who fixed it said there was no damage but only screen led lights also it just got wrong while i was HOLDING device in hands there was no drop or something
Prerevision said:
tried another sim, it`s same but hardware? it worked just fine but once.... ehm well it`s already open iv got water damage while put it in water but one who fixed it said there was no damage but only screen led lights also it just got wrong while i was HOLDING device in hands there was no drop or something
Click to expand...
Click to collapse
I'm not an hardware expert but if it's not the sim and you're seeing some water damage inside the phone that's probably the cause. you might have water residue or oxidation on the antenna connectors which will make your signal weak. you can buy a new antenna online cheap and replacing it looks very easy. after a quick search i found this: http://www.witrigs.com/antenna-rf-cable-for-sony-xperia-z2
I really like my z2 and i would try everything that was not too expensive/hard to fix it
ptmaniac said:
I'm not an hardware expert but if it's not the sim and you're seeing some water damage inside the phone that's probably the cause. you might have water residue or oxidation on the antenna connectors which will make your signal weak. you can buy a new antenna online cheap and replacing it looks very easy. after a quick search i found this: http://www.witrigs.com/antenna-rf-cable-for-sony-xperia-z2
I really like my z2 and i would try everything that was not too expensive/hard to fix it
Click to expand...
Click to collapse
man i`ll learn a lesson and never will buy Sony anymore or any "water resistant" phone
by the way after water damage fix it worked fine about 2 week then got signal issue
I was on evox everything was fine and i thought id try the new Havok, i clean flashed as normal and (this happened before but only for alittle and format fixed it) now my SD or my SIM arent being recognized, not even in TWRP.
I tried reflashing vendor/firmware, format, wiped everything still SD wasnt being detected but it did show up on PC and i saved all my data. I then formated SD and still no detection.
I reflashed EVO and all worked except sim and SD, so i went and did a full miui flash with mi tool.
Im now at miui setup page and its asking me for sim when its in there, tested my sim in my friend iphone and it works.
Is my phone burned?
well in the end after a hard shake of my phone the sim and sd it started working again, for how long? who knows.
phone repair guy said it would cost probably 300-400-500shekelw to solder, the phone was bought for 1000 so fk it.
question if anyone knows this is the phone signal graph from gsam, it used to never go below 40,, does this mean im losing connection during the day?
Mooatreides said:
well in the end after a hard shake of my phone the sim and sd it started working again, for how long? who knows.
phone repair guy said it would cost probably 300-400-500shekelw to solder, the phone was bought for 1000 so fk it.
question if anyone knows this is the phone signal graph from gsam, it used to never go below 40,, does this mean im losing connection during the day?
Click to expand...
Click to collapse
Yes. If you travel with the phone, this may be normal. If the phone is in one place the whole time, then either you have an issue or your mobile tower/provider has.
tnsmani said:
Yes. If you travel with the phone, this may be normal. If the phone is in one place the whole time, then either you have an issue or your mobile tower/provider has.
Click to expand...
Click to collapse
I was completely static sitting at work when these readings were taken, thing is same type of graph happens at home also . Previously the graph would be always between 40 to 80 and no sharp ups or downs all just normal(fromnexactly same locations) and this erratic signal only started after i lost my sd and sim connection for like 12 hours (shaking the phone brought it back which leads me to think it hardware).
My gf once shoved in a pin to eject the sd and i think she did it too far or something and nicked some solder point since shortly after the sim and sd stopped working, but everything went back to normal after a while. This second time it happened again that i lost sim and sd and now i have this erratic graph where it says my signal is at 0 but i still got a call.
Jsut to try i switched from evox to crdroid and i observed the same type of signal graph so its not a rom thing.
these readings are from when i switched roms to test and its the same.
Mooatreides said:
these readings are from when i switched roms to test and its the same.
Click to expand...
Click to collapse
Apart from Gsam showing these readings, do you have any issues with calls? If not, I would simply ignore it.
tnsmani said:
Apart from Gsam showing these readings, do you have any issues with calls? If not, I would simply ignore it.
Click to expand...
Click to collapse
I had problems with download speeds, i was getting like half normal.
I FIXED it though with a bushfix, i put like 4 layers of cellophane tape on my sim card and now it seems it presses it in better, my stats are now steady between 40-80 depending if im indoors or out, no drop offs at all.
I hope this lasts! if not looking into mi 9 or K20 pro.
Mooatreides said:
I had problems with download speeds, i was getting like half normal.
I FIXED it though with a bushfix, i put like 4 layers of cellophane tape on my sim card and now it seems it presses it in better, my stats are now steady between 40-80 depending if im indoors or out, no drop offs at all.
I hope this lasts! if not looking into mi 9 or K20 pro.
Click to expand...
Click to collapse
I'm having the same bs with mine (losing SIM and sd card access periodically). I have the added ballache of random shutdowns for hours at a time.
After noticing one side of the SIM tray was slightly worn down and wondering if it wasn't pressing the cards onto the terminals sufficiently firmly, I tried adding tape. One layer didn't do the trick and I was reluctant to use more and get it stuck inside the phone.
I've ordered a new SIM tray from Ali express - hope this will do the trick
thesoupthief said:
I'm having the same bs with mine (losing SIM and sd card access periodically). I have the added ballache of random shutdowns for hours at a time.
After noticing one side of the SIM tray was slightly worn down and wondering if it wasn't pressing the cards onto the terminals sufficiently firmly, I tried adding tape. One layer didn't do the trick and I was reluctant to use more and get it stuck inside the phone.
I've ordered a new SIM tray from Ali express - hope this will do the trick
Click to expand...
Click to collapse
Really grinds my gears having this stuff happen, at first i thought the connectors were broken, im not sure if its the tray though cuz i took my girls poco sim tray with her sd an last time it dint detect hers either.
Try what i did first to see if it helps, 3/4 layers of the clear tape, put it on the sd n cut to size.
thesoupthief said:
I'm having the same bs with mine (losing SIM and sd card access periodically). I have the added ballache of random shutdowns for hours at a time.
After noticing one side of the SIM tray was slightly worn down and wondering if it wasn't pressing the cards onto the terminals sufficiently firmly, I tried adding tape. One layer didn't do the trick and I was reluctant to use more and get it stuck inside the phone.
I've ordered a new SIM tray from Ali express - hope this will do the trick
Click to expand...
Click to collapse
Soo you are saying that sometimes your simcard would randomly die with no reason, and even after getting out and putting back didn't 100% fixed it?
Also that your phone suddenly died for like 2 hour and you couldn't start it no matter what?
Cuz i had these 2 problems.
D1stRU3T0R said:
Soo you are saying that sometimes your simcard would randomly die with no reason, and even after getting out and putting back didn't 100% fixed it?
Also that your phone suddenly died for like 2 hour and you couldn't start it no matter what?
Cuz i had these 2 problems.
Click to expand...
Click to collapse
Yup, that's what has been happening. Sometimes popping out the SIM and reinserting it helps, but often it doesn't. I've found it happens less when the SIM is in the SIM 1 slot rather than SIM 2, meaning I can't use an SD card. Makes me wonder though if it's mechanical, hence whether a new SIM tray might help
Random shutdowns are a PITA. They've lasted days before now
I returned it to Xiaomi for repair. They found it started up and returned it insisting it is fine. Despite videos showing the problem. Waste of time!
Did you manage to get yours over this or is it still happening?
thesoupthief said:
Yup, that's what has been happening. Sometimes popping out the SIM and reinserting it helps, but often it doesn't. I've found it happens less when the SIM is in the SIM 1 slot rather than SIM 2, meaning I can't use an SD card. Makes me wonder though if it's mechanical, hence whether a new SIM tray might help
Random shutdowns are a PITA. They've lasted days before now
I returned it to Xiaomi for repair. They found it started up and returned it insisting it is fine. Despite videos showing the problem. Waste of time!
Did you manage to get yours over this or is it still happening?
Click to expand...
Click to collapse
It didn't happend after 3 shut downs. And neither the sim issues. Just to be sure i CLEAN FLASHED AND LOCKED BOOTLOADER than unlocked again and clean flashed latest xiaomi eu. Since then i didn't had any of those problems (but i got another one, maybe because of malakas kernel, rarely my screen would get stuck and only reboot could fix it(or touch sensor, not the OS)
D1stRU3T0R said:
It didn't happend after 3 shut downs. And neither the sim issues. Just to be sure i CLEAN FLASHED AND LOCKED BOOTLOADER than unlocked again and clean flashed latest xiaomi eu. Since then i didn't had any of those problems (but i got another one, maybe because of malakas kernel, rarely my screen would get stuck and only reboot could fix it(or touch sensor, not the OS)
Click to expand...
Click to collapse
I've done factory resets, without any improvement, but haven't relocked my bootloader
Might try that if I can summon the resolve
I've half convinced myself that it's a mechanical thing though with the positioning of the SIM card seeming to make a difference...
thesoupthief said:
I've done factory resets, without any improvement, but haven't relocked my bootloader
Might try that if I can summon the resolve
I've half convinced myself that it's a mechanical thing though with the positioning of the SIM card seeming to make a difference...
Click to expand...
Click to collapse
I had the same, couldn't fix it and i got mad and put it in slot 2,whitout sdcsrd, than it worked, i was afraid that i bricked sim 1 (its sim 0 in reality but doesn't matter), than i put it back and never had problems since than. I recommend you to:
Clean Flash back 9.6.27 beta with miflash (while relock bootloader)
Unlock bootloader, install twrp, CLEAN FLASH (well i didn't wiped system cuz some people said that on the forum, and tbh doesn't affected me) latest xiaomi eu (again, whitout wiping system but wiping all), install malakas kernel and latest magisk (13 or even 14) and if you want install FDE.Ai.
If you have problems even after all of this, than it's maybe damaged hardware, which is very unlikely.
my sim has been with stable signal strength since i put acouple layers of tape on the top.
flashing things ddidn't help me at all. I was considering mi9 to replace but developpement on K20pro looks like it will b way better.
so dar everything works so ill wait a couple months before buying a new phone.
D1stRU3T0R said:
I had the same, couldn't fix it and i got mad and put it in slot 2,whitout sdcsrd, than it worked, i was afraid that i bricked sim 1 (its sim 0 in reality but doesn't matter), than i put it back and never had problems since than. I recommend you to:
Clean Flash back 9.6.27 beta with miflash (while relock bootloader)
Unlock bootloader, install twrp, CLEAN FLASH (well i didn't wiped system cuz some people said that on the forum, and tbh doesn't affected me) latest xiaomi eu (again, whitout wiping system but wiping all), install malakas kernel and latest magisk (13 or even 14) and if you want install FDE.Ai.
If you have problems even after all of this, than it's maybe damaged hardware, which is very unlikely.
Click to expand...
Click to collapse
I've just been on holiday for a week, during which time I had no shutdowns at all. Could be total coincidence, but a few days before I went I moved the SIM from slot 2 to slot 1. I've done this previously and still had random shutdowns, but strangely this time it seems to be behaving currently. Most odd
thesoupthief said:
I've just been on holiday for a week, during which time I had no shutdowns at all. Could be total coincidence, but a few days before I went I moved the SIM from slot 2 to slot 1. I've done this previously and still had random shutdowns, but strangely this time it seems to be behaving currently. Most odd
Click to expand...
Click to collapse
I never had problems agaon, BUT like 2 days my sdcard disconnected and could never put it back, even if it worked in another phone...
Solution?
Recap: since my F1 was about 3 months old I've been getting apparently random shutdowns lasting moments to months, also similarly sporadic signal loss and disconnection of the SD card. Have returned it to the manufacturer who took a bunch of cash from me, found it worked when they turned it on and returned it to me. A couple of days after receiving it back it shut down and continued to do so, exactly as before I sent it off. I started putting the SIM in the other slot and it worked reliably for about a month, then it all went to rat **** again.
About 2 weeks ago it shut down and wouldn't restart since. Pissed off with it and content that the warranty has no value, I took the back off last night and found that the antenna connection was loose. I pushed it in firmly (along with all the other connections to the motherboard - battery, screen etc) and fastened down the black motherboard bracket / plate / cover a bit more securely than previously, put it all back together and....
When I pressed the power button it sprang into life!
First time in 2 weeks and it's been steady as a rock since
I hope I'm not posting this prematurely - that the problem won't recur now I've tempted fate, but the initial signs seem promising
Kind of wish I'd got my screwdriver out 7 months ago and saved myself all the fannying about!
Btw, this teardown was helpful in case anyone wants to take the plunge https://youtu.be/LlubcWbsSQk