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Sim card types?


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Old 17-03-2012, 15:06
Richy777
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Join Date: Mar 2012
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Hi all.

I've a small problem with my Motorola Defy Plus in that it randomly reboots. Half the time it isn't a problem but when it's mid call it's very tedious. Been in touch with Motorola support (such as it is?) and they suggest it's sim card incompatibility. They suggest I contact my network provider and ask them for a replacement of any type other than N-5 Type Simcard?

I'm with T-Mobile and asked in one of their shops about the card. They pretty much lost interest when they realized the phone was not provided by them. They also were unaware of any other type of sim card?

Anyone on here have any knowledge on the subject? Are there other types available? I don't mean the mini sim cards of course.

I do suspect it's a hardware problem as I'm nearly out of contract and been trying the other networks on payg free sims to check coverage and it's rebooted with every card. It's totally random and can sometimes go for days with no rebooting then reboot 4 times in an hour.

I really like the phone but the issue is annoying. Anyone an knowledge on sim card types as any help appreciated.
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Old 17-03-2012, 15:14
TheBigM
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Is your simcard very old? Like One2One or BT Cellnet old? Other than that, I can't see what the issue is.
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Old 17-03-2012, 17:40
drabble
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Yes later the SIM the better my old 02 and Virgin SIMs had issues, the 02 SIM was meant to be 3G but wasn't and the Virgin SIM couldn't decide which network it wanted to be on, but from the sounds of it your device also has a problem.

Newer SIMs tend to be faster and have less issues with modern handsets.

If a SIM is more than a couple of years old it should be replaced, T-Mobile would want to charge you for it I believe the general advice is to ask for a PAC then they should send you one FOC but probably will not work as you are still in contract.
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Old 17-03-2012, 18:19
Richy777
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Sim could be 3 year old - so not so old really? Do bear in mind it did the same with an O2, Three and Vodafone PAYG sims so they were certainly new.

What Moto support suggested was I use the phone without a sim and see if it reboots. Took it out for a while and it didn't though even with a sim in it can go for days without issue. I did point out that if I took the battery out it didn't reboot either .... though of course it was nearly as much use as a phone without a sim!!

T-Mobile did indeed want to charge for a new sim. My contract is up in May and hence been trying the main networks. Voda and O2 were rubbish in my rural area. T-Mobile are pretty good and Three were very impressive. Good data speeds and much cleaner voice? I'd be going monthly sim only and maybe even 1 month contract if I went with Three. T-Mobile I think I could trust to go for a years contract.

Anyway, plenty of stories of rebooting Defy Plus's on the internet. I'll stick in at Motorola and make them take it back in. Done it from day one and should really have sent it back then? Totally random and can go for ages without a reboot, as much as a week or more (runs 24/7). Apart from that issue the phone has served me well and is 'tough' enough to keep going. I thought I'd ask if there were alternative sim cards to the default N-5 type? NOT that I think the sim is the problem.
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Old 17-03-2012, 20:25
ajh94
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I remember an old Tesco Mobile SIM my bro still used for up to 3 months ago, he could NEVER get 3G and we realised its cos the SIM was from 2004 so he asked for another one and works great so I think SIMs just get updated as new technologies come out
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Old 18-03-2012, 09:26
Orbitalzone
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I've just bought a new unlocked Defy+ , purchased outright sim free from Amazon - mine rebooted the other day while in the car using bluetooth connected to my car kit. It also rebooted and got stuck on the android logo with a traffic cone (suggesting a problem?) and I removed battery and wiggled the sim and it's been fine since.

I noticed when I put in the SIM I almost bent it a bit due to the tight fit and the need to slide it in and under the clip, perhaps this distorts the sim card making it go faulty or bent and intermittently connecting on occasions?

A great phone only let down by a couple of silly things like a rather plasticky case (I expected a heavier more solid phone casing) and slightly questionable port covers that might break eventually after all the pluggin in of charger or headphones.
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Old 18-03-2012, 11:01
Richard_T
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Have you tried it without the sim card in for any amount of time? have you tried another sim card?
what rom/android version is on your defy?
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