can i flash a lg g3 stock firmware without a sim card?? - G3 Q&A, Help & Troubleshooting

So i have a canadian lg g3 and i want to flash a stock firmware ive done it in the past with my rogers lg g3 but it had a sim card in it. So my lg g3 doesnt have a sim card in it and i want to flash a custom rom but i need to downgrade first but i dont have a sim in it so my question in... Can i flash a stock firmware without a sim card???

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[Q] cant get back to stock on ls980

sorry for my english
i just buy a lg g2 sprint and the guy who sell me the cell told me that it was unlocked and it was cause im using it with my telcel sim card in mexico but i just find out that it has a custom rom call rayglobe flex 3.5 android 4.2.2 , and i just found out that sprint cannot be unlocked by code and i found a way to get it simunlock , i want to update to 4.4.2 for that i need to return to stock
i follow instructions exactly i download tot and dll for ls980 but my phone says that is a d802 but the back of my phone says ls980 and is a sprint version but my phone says d802 so when i try to use lgflashtool everything go ok but after waiting for conection says wrong model number or check dll
and i cant return it to stock is there a way to change model number so lgflashtool can be use ?
and kind of new to custom roms and root and stuff
i have twrp recovery
or is there like a custom rom that i could flash without loosing my simunlock?
thanxs i hope you could help me guys

Flashing Rogers D852 ROM onto Olleh F400K

Hi, simple question.
Would flashing a Rogers ROM onto an Olleh G3 brick it? Curious because Rogers is having a promotion where I can get $100 on a virtual NFC wallet, but it appears that I need to be running stock Rogers software or else the phone can't detect the proprietary "Suretap" SIM card.
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[Q] LG G3 upgrade to 5.0.1

Hello gurus, i have a problem with my LG G3 i upgraded it to 5.0.1 but it is stuck at the LG Logo but without a sim card in it it works fine.
i don't think there is an issue with the sim card itself as it works in my other phone and was working fine in my LG G3 before the upgrade. the phone itself in not rooted, it is still locked by Fido so i don't see why there would be any conflict with the sim card.
i tried to restore upgrade errors with PC suite but that didn't help either. help?
Carrier: FIDO Canada
model: LG-D852
this_is_confusing said:
Hello gurus, i have a problem with my LG G3 i upgraded it to 5.0.1 but it is stuck at the LG Logo but without a sim card in it it works fine.
i don't think there is an issue with the sim card itself as it works in my other phone and was working fine in my LG G3 before the upgrade. the phone itself in not rooted, it is still locked by Fido so i don't see why there would be any conflict with the sim card.
i tried to restore upgrade errors with PC suite but that didn't help either. help?
Carrier: FIDO Canada
model: LG-D852
Click to expand...
Click to collapse
download the kdz and flash it(gogle how to or see in my most thanked

Question about sim unlock

Hi i've got LG G2 ls980 and i can put any sim card
i want to know if its factory unlocked or tweaked

lg g4 h818n root help

Lg g4 h818n isn't getting rooted by any method......help plzzzz.....i have lost all data of internal memory and want to recover it and rooting the phone is essential for it
Same issue but me I backed up my files on PC ??
I think first we should downgrade to 5.1.1 by flashing kdz via lg flash tool and then root the phone

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