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In short, you will be able to receive old msgs which are not older than 30 days.
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ok , iunderstand , but let me slice it now : &nbsp;1_ &nbsp; thirty days since stop using my account of the old number , or thirty days from now , in other word : no way to retrieve even the recently sent , &nbsp; 2_ &nbsp; any other party even payed , cannt retrieve them
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I think that your old whatsapp account has been deactivated as you have not used it for more than 45 days in your old iphone and have not signed in with another device afterwards.<br />
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Source: <a href="https://www.whatsapp.com/faq/en/general/24068052" rel="ugc">https://www.whatsapp.com/faq/en/general/24068052</a><br />
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One simple test is as follows:<br />
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If your old whatsapp account has not been deactivated, you will see your old profile photo when you sign in with your new android phone.<br />
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In short, you will only receive msgs after you have reactivated a deactivated whatsapp account.
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yesterday I note something , one group on iPhone which I previously joined to with my very old number , then they joined me with my next number till now , I noticed notification on same group telling that my very old number left the group on same day I reactivated it on Android , I think if I reactivated on iPhone instead of Android it may restore my missed chats
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It does not harm anyway if you want to activate again on iPhone.
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here will be the question , if I reactivate it on my iPhone , can I retrieve that chats , if ok I will , if not , I will loose my new current one using on iPhone
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Your iOS version for iPhone 3GS is pretty old and hence the whatsapp version is old also which does not support iCloud backup of whatsapp chat log.<br />
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If you try to activate your old cell number on your iPhone 3GS, I am pretty sure that you will loss all chat logs for your current cell number.<br />
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Anyway, you can still try provided that your iPhone 3GS is its latest iOS and you do a full backup of its content using iTunes in a computer. What is the version of iOS in your iPhone 3GS.
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Regarding whether it will receive old msgs, it is not likely that whatsapp server do hold any old mgs received.<br />
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From your scenario, &nbsp;&quot;I installed whatsapp on my iphone 3 years ago using my cell phone number , then I uninstalled it , then I reinstall it using different phone number&quot; and you install it now in an android device, it fits into the case for a recycle of your old cell number to different owner as your previous activation of the said old cell number is more than 45 days and you activate it in another device will triger a recycle of your old cell number.<br />
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It will help if you have not activated the old cell number in your android device, but the recycle did take place and you cannot reverse it by activating it again in your old iPhone.<br />
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Sorry for not being helpful, but it is a fact that I have to tell you from my understanding.
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just give me more time im contacting whatsapp , ill be back soon , thanx
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hi &nbsp; &nbsp;, &nbsp; I installed whatsapp on my iphone 3 years ago using my cell phone number , then I uninstalled it , then I reinstall it using different phone number , &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; last year I purchased huwaey p8. , install whatsapp with third phone nunber , yesterday someone informed me that he sent lot of messages to my first phone number , here I do un install whatsapp on android , then install it again using my very old number , it is ok but now how I can receive all chat since un installing wharsapp on iphone till I install it on my android yesterday
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hi    ,   I installed whatsapp on my iphone 3 years ago using my cell phone number , then I uninstalled it , then I reinstall it using different phone number ,                           last year I purchased huwaey p8. , install whatsapp with third phone nunber , yesterday someone informed me that he sent lot of messages to my first phone number , here I do un install whatsapp on android , then install it again using my very old number , it is ok but now how I can receive all chat since un installing wharsapp on iphone till I install it on my android yesterday

retrive wharsapp chat

Android is a mobile operating system developed by Google, based on the Linux kernel and designed primarily for touchscreen mobile devices such as smartphones and tablets. Android's user interface is based on direct manipulation, using touch gestures that loosely correspond to real-world actions, such as swiping, tapping and pinching, to manipulate on-screen objects, along with a virtual keyboard for text input. In addition to touchscreen devices, variants of Android are also used on notebooks, game consoles, digital cameras, televisions, automobiles and other electronics. Applications are usually developed in Java programming language using the Android software development kit (SDK), but other development environments are also available, including Delphi, Ruby and Visual Studio (using C++).

Android

A social networking service is a platform to build social networks or relations among people who share similar interests, activities, backgrounds or real-life connections. A social network service consists of a representation of each user (often a profile), his or her social links, and a variety of additional services such as career services. Social network sites are web-based services that allow individuals to create a public profile, create a list of users with whom to share connections, and view and cross the connections within the system. Social networking sites allow users to share ideas, pictures, posts, activities, events, and interests with people in their network. Other popular services include Google+, LinkedIn, Instagram, Reddit, Pinterest, Vine and Tumblr.

Social Networking

Instant messaging (IM) is a type of online chat that offers real-time text transmission over the Internet. A LAN messenger operates in a similar way over a local area network. More advanced instant messaging can add file transfer, clickable hyperlinks, Voice over IP, or video chat. Non-IM types of chat include multicast transmission, usually referred to as "chat rooms". Depending on the IM protocol, the technical architecture can be peer-to-peer (direct point-to-point transmission) or client-server (a central server retransmits messages from the sender to the communication device).